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Sistem Pengamatan Suhu dan Kelembaban Pada Rumah Berbasis Mikrokontroller ATmega8 Adiptya, Muhammad Yan Eka; Wibawanto, Hari
Jurnal Teknik Elektro Vol 5, No 1 (2013): Jurnal Teknik Elektro
Publisher : Jurusan Teknik Elektro, Fakultas Teknik, Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jte.v5i1.3548

Abstract

Abstrak— Dalam keseharian kita terkadang diperlukan pengukuran suhu maupun kelembaban lingkungan di sekitar kita. Banyak macam sensor untuk pengukuran suhu atau kelembaban, semisal LM35, S18S20 maupun DHT11. Untuk pengukuran suhu dan kelembaban lingkungan sekitar kita maka bisa dipilih sensor yang cukup murah yaitu DHT11. DHT11 memiliki output digital yang sudah terkalibrasi. Sensor ini terdiri dari komponen pengukur kelembaban tipe resistive dan pengukuran suhu melalui NTC serta terhubung dengan 8 bit uC sehingga memberikan hasil yang cukup baik, kecepatan respon yang cukup, memiliki ketahanan yang baik terhadap interferensi dan cukup murah dalam harga. Interface yang digunakan adalah single write serial interface yang cukup cepat dan mudah. Ukuran sensor yang kecil, kebutuhan komsumsi daya yang rendah dan mampu mentransmisikan outputnya dalam jarak 20 meter. Kelemahan dari sensor ini adalah akurasi yang kurang, selain itu range pengukuran suhunya hanya 0 sd 50 derajat Celcius tapi dengan harga yang cukup murah sensor ini bisa menjadi alternatif untuk dipakai dalam pengukuran suhu dan kelembaban yang tidak terlalu memerlukan akurasi yang bagus. Misalnya pengukuran suhu kamar, pengukuran suhu dan kelembaban mesin penetas dan lain-lain. Jika jarak sensor ke uC kurang dari 20 meter maka perlu dipasang resistor pull up 5K di pin data nya. Sedangkan jika jarak lebih dari 20 meter maka perlu disesuiakan besarnya resistor pull up tersebut. Catu daya yang diperlukan DHT11 ini berkisar 3.5V sampai 5V. Akses ke sensor hanya diperbolehkan lebih dari 1 detik setelah catu daya pertama kali diberikan. Perlu pula ditambhakan kapasitor 100nF diantara pin VCC dan GND untuk filter catu daya. Keywords— sensor, mikrokontroler, DHT11, ATmega8
Mobile E-learning Sebagai Alat Bantu Pembelajaran Dasar Elektronika Di Program Studi Pendidikan Teknik Elektro Unnes Menggunakan Ponsel Firdaus, M Asysyifaul; Wibawanto, Hari; Adi, Slamet Seno
Jurnal Teknik Elektro Vol 5, No 1 (2013): Jurnal Teknik Elektro
Publisher : Jurusan Teknik Elektro, Fakultas Teknik, Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jte.v5i1.3547

Abstract

bstrak— Perkembangan teknologi menjadikan ponsel memiliki fitur-fitur yang semakin lengkap hingga mendekati fungsi sebuah komputer. Dengan fitur yang begitu lengkap, saat ini ponsel dapat dimiliki dengan harga murah. Oleh karena itu kebanyakan para pelajar telah memiliki ponsel, dan membawanya saat bersekolah. Agar ponsel yang dibawa oleh siswa menjadi lebih bermanfaat, maka ponsel dimanfaatkan sebagai media untuk mengakses e-learning. Permasalahannya, bagaimana merancang e-learning yang dapat diakses melalui ponsel, bagaimanakah kinerja e- earning yang diakses melalui ponsel, dan apa tanggapan para pengguna. Keywords— M-learning, E-learning, dasar elektronika
PENGEMBANGAN INSTRUMEN PENILAIAN UNJUK KERJA PRAKTIK PERAWATAN KULIT WAJAH BERBASIS KOMPETENSI DI UNIVERSITAS NEGERI SEMARANG Astuti, Puji; -, Widya; Wibawanto, Hari; Khumaedi, Muhammad
Journal of Research and Educational Research Evaluation Vol 4 No 2 (2015)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (148.848 KB)

Abstract

Penelitian ini dilatarbelakangi oleh kenyataan belum adanya instrumen penilaian perawatan kulit wajah yang baku, belum diuji validitas dan reliabilitas. Instrumen penilaian praktik yang digunakan oleh dosen pengampu mata kuliah perawatan kulit wajah masih bersifat holistic/menyeluruh atau belum terstruktur. Penelitian ini merupakan penelitian pengembangan instrumen. Uji validitas isi menggunakan rata-rata hasil penilaian dan perhitungan reliabilitas para ahli menggunakan anova satu jalur. Untuk mengetahui hasil validitas konstruk dan reliabilitas secara empirik yaitu menggunakan analisis faktor pendekatan exploratory dan alpha (?) cronbach. Hasil validitas isi pengembangan instrumen penilaian unjuk kerja praktik perawatan kulit wajah menurut para ahli masuk pada kategori sangat baik dan hasil perhitungan reliabilitas menunjukkan bahwa tidak terdapat perbedaan signifikan antara ke-lima ahli dalam menilai isi instrumen. Pengujian reliabilitas pada koefisien Alpha Cronbach pada uji coba 2 memiliki tingkat reliabilitas yang lebih tinggi. Berdasarkan hasil penelitian berupa instrumen penilaian yang valid dan reliabel maka disarankan kepada seluruh dosen pengampu pada Prodi Pendidikan Tata Rias untuk dapat menggunakan instrumen penilaian unjuk kerja praktik perawatan kulit wajah. This research is motivated by the fact the lack of standardized assessment instruments of facial skin care, has not been tested for validity and reliability. Practice assessment instruments used by lecturers in facial skin care subjects was still holistic/comprehensive or not structured. This research was the development of the instrument. The results of construct validity and empirical reliability which use exploratory factor analysis and alpha (?) cronbach. Results of the content validity of the development of performance assessment instrument of facial skin care practice according to experts belong to the category of very good and the reliability of calculation results showed that there were no significant differences between the five experts in assessing the content of the instrument. Based on these data, it can be concluded that the indicator of instrument performance assessment of facial skin care practices declared invalid. The reliability testing on the Alpha Cronbach coefficient trial 2 had a higher level of reliability. Based on the results of research in the form of assessment instruments which are valid and reliable it is recommended to all lecturers on Makeup Education Programme to be able to use an assessment instrument performance practice of facial skin care.This research is motivated by the fact the lack of standardized assessment instruments of facial skin care, has not been tested for validity and reliability. Practice assessment instruments used by lecturers in facial skin care subjects was still holistic/comprehensive or not structured. This research was the development of the instrument. The results of construct validity and empirical reliability which use exploratory factor analysis and alpha (?) cronbach. Results of the content validity of the development of performance assessment instrument of facial skin care practice according to experts belong to the category of very good and the reliability of calculation results showed that there were no significant differences between the five experts in assessing the content of the instrument. Based on these data, it can be concluded that the indicator of instrument performance assessment of facial skin care practices declared invalid. The reliability testing on the Alpha Cronbach coefficient trial 2 had a higher level of reliability. Based on the results of research in the form of assessment instruments which are valid and reliable it is recommended to all lecturers on Makeup Education Programme to be able to use an assessment instrument performance practice of facial skin care.
PENGEMBANGAN INSTRUMEN PENILAIAN KINERJA GURU MENGGUNAKAN PENILAIAN DIRI, TEMAN SEJAWAT, DAN PENILAIAN OLEH SISWA Firyomanto, Firyomanto; Wibawanto, Hari; Syamwil, Rodia
Journal of Research and Educational Research Evaluation Vol 5 No 1 (2016)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (230.179 KB) | DOI: 10.15294/jrer.v5i1.14878

Abstract

Penelitian ini bertujuan untuk mengembangkan instrumen penilaian kinerja guru SMK dan panduan penilaian kinerja guru SMK. Model penelitian menggunakan pengembangan dengan 9 langkah pengembangan dan metode penelitian mix method. Pengumpulan data melalui wawancara dan lembar observasi analisis berupa triangulasi. Alat pengumpulan data metode kuantitatif menggunakan validasi melalui 3 Expert Judgment dianalisis menggunakan formula Aiken, analisis instrumen penilaian kinerja guru SMK menggunakan validitas konstruk Exploratory Factor Analysis (EFA), reliabilitas instrumen dianalisis menggunakan Alpha Cronbach, dan uji kepraktisan menggunakan uji kuantitatif sederhana. Hasil validitas instrumen Expert Judgment menunjukkan validitas ≥ 0,30 bahwa seluruh butir item valid. Reliabilitas instrumen antar-rater menunjukkan bahwa tidak ada perbedaan yang signifikan. Hasil KMO pada uji coba pertama 0,628- 0,668 terdapat satu item yang memiliki nilai KMO ≤ 0,5. setelah direvisi hasil KMO pada uji coba kedua 0.658-0.732. Berdasarkan muatan faktor terdapat 33 item yang memiliki nilai ≥ 0,5, maka dikatakan keseluruhan item valid. Reliabilitas pada uji coba pertama yaitu 0,863-0.871, nilai reliabilitas pada uji coba kedua 0,864-0,872. Pengembangan buku pedoman penilaian kinerja guru SMK yang diperuntukkan untuk guru SMK dan siswa SMK. Kesimpulan bahwa instrumen penilaian kinerja guru SMK memiliki validitas dan reliabilitas yang baik sehingga dapat digunakan sebagai instrumen penilaian kinerja guru SMK. This research is to develop a vocational teacher performance assessment instruments and guidelines vocational teacher performance. The research model using development with 9 steps of development and research methods mix method. Collecting data through interviews and observation form with triangulation analysis. Data collection tool uses a quantitative method with validation 3 Expert Judgment analyzed using formula Aiken, analyzed instruments vocational teacher performance using the construct validity Exploratory Factor Analysis (EFA), the reliability of instrument were analyzed using Cronbach Alpha and test the practicality using a simple quantitative test. The results of the validity instruments of Expert Judgment is of ≥ 0.30, that whole grain items is valid. Inter-rater reliability of the instrument showed there was no significant difference. The results of the first trial KMO 0,628- 0.668, there is one item with a value of KMO ≤ 0.5. After the revised of the second trial KMO 0658-0732. Based on the factor loadings are 33 items which have a value of ≥ 0.5, then the whole item is valid. Reliability in the first trial is 0.863 to 0871, the value of reliability the second trial from .864 to .872. Development handbook vocational teacher performance for vocational teachers and vocational students. The conclusion that the vocational teacher performance assessment instruments have good validity and reliability so it can be used as a vocational teacher performance assessment instruments.
Development of Learning Method Blended Flipped Classroom of in Algorithm and Programming Mariam, Metta; Wibawanto, Hari; Supraptono, Eko
Journal of Vocational and Career Education Vol 3, No 2 (2018): December 2018
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jvce.v3i2.17965

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The purpose of this research is to develop  learning e-learning-based as a solution in improving attitudes, interests and competence of student learning in particular PTIK employee class in the subject matter of programming dam algorithm looping /looping.The research method used follows the steps of Sugiyono but the researcher only took 4 (four) stages of research, namely 1) preliminary stage, 2) development stage, 3) validation stage and 4) implementation phase. The essence of this study is to look for differences between attitudes, interests and learning competencies before and after the application of-based elearninglearning. The results showed a difference in attitude percentage of 12.13%, the difference in percentage interest of 18.23% and the results of student learning competencies were seen from the average score of pretest of 73.16 and theaverage score  posttests of 89.63 with the test results the gain is 1 with high criteria. Thus it can be concluded that the results of the development oflearning in blended themethod flipped classroom can improve the attitudes, interests and learning competencies of employees of the PTIK class. This finding is the development of the blended learning  method of flipped classroom, a learning method that can be applied at the college level that has employee classes.learning in Blended themethod flipped classroom can be used as a reference in new learning in college.
Pengembangan Mobile Learning Teknik Digital Bagi Mahasiswa Pendidikan Teknik Elektro Hapsari, Widya; Wibawanto, Hari; Sudana, I Made
Journal of Vocational and Career Education Vol 2, No 1 (2017): July 2017
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jvce.v2i1.10979

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Penelitian ini bertujuan mengembangkan perangkat pembelajaran mobile learning teknik digital bagi mahasiswa Pendidikan Teknik Elektro, menguji keefektifan dan kepraktisannya. Metode penelitian yang digunakan adalah Research and Development. Tahapan proses penelitian ini antara lain: (1) tahap pendahuluan, berupa studi literatur, penelitian pendahuluan tentang penggunaan smartphone, menganalisis silabus, menentukan substansi materi dan obyek pembelajaran; (2) tahap pengembangan, membuat peta program pembelajaran yang diintegrasikan ke mobile learning teknik digital; (3) tahap validasi, dilakukan oleh pakar media dan materi. Setelah memperoleh validasi dengan kriteria yang layak, maka dapat diujikan. Pengujian dilakukan di Jurusan Teknik Elektro Universitas Negeri Semarang dengan melibatkan 10 mahasiswa uji coba kelompok kecil dan 31 mahasiswa uji lapangan. Metode pengumpulan data berupa soal tes dan angket. Hasil uji validasi media sebesar 83,25% (sangat layak), sedangkan validasi materi sebesar 95,5% (sangat layak). Hasil uji coba kelompok kecil diperoleh skor rata-rata pre test 70,0 dan post test 89,0 dengan gain 0,63 (sedang). Hasil uji lapangan diperoleh skor rata-rata pre test 67,9 dan post test 85,2 dengan gain 0,54 (sedang). Hasil uji kepraktisan diperoleh 82,8% yang termasuk dalam kriteria sangat praktis. Dengan demikian dapat disimpulkan bahwa pengembangan mobile learning teknik digital ini layak, efektif dan praktis digunakan sebagai media pembelajaran mata kuliah teknik digital.This study aimed to develop learning tools of digital technique mobile learning for Electrical Engineering Education students, to test the effectiveness and practicality. The study used Research and Development method.The steps in conductingthis research include: (1) preliminary, by doingliterature study, preliminary research on smartphone usage, analyzing syllabus, determining material substance and learning objects; (2) development, by making a map of learning program which was integrated into digital technique mobile learning; (3) validation by media and material experts. After validated, the media could be tested. The test was done at Electrical Engineering Department of Semarang State University involving 10 studentsofsmall group test and 31studentsoffield test.The methods of data collection were testsand questionnaires. The result of material validation was 95.5% (very feasible). The result of small group test obtained pre-test average score of 70.0 and post-test average of 89.0 with gain 0,63 (medium). Field test results obtained pre-test average score of 67.9and post-test average score of85.2 with gain 0,54 (medium). Practical test results obtained 82.8% which meant very practical. Thus, it could be concluded that the development of digital technique mobile learning was feasible to be used as learningmedia.
The Development Training Model for the Production of Local Material-Based Artificial Fish Feed in Jelimpo District Landak Regency Anita, Yopi; Sudana, I Made; Wibawanto, Hari
Journal of Vocational and Career Education Vol 4, No 1 (2019): July 2019
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jvce.v3i2.18802

Abstract

Feed is one of important components in fish farming, around 60% of the operational cost is spent on feeds. The government initiated Gerakan Pakan Mandiri (GERPARI) or independent feed movement to minimalize the dependency on commercial feed also to minimalize the dependency on imported feed material by utilizing the abundant local materials. However, the potential of local raw materials abundance has not been able to be optimally managed due to the lack of knowledge of farmers, consequently, farmers have not been able to escape the dependency on commercial feed. The development of this training model is a medium which is expected to be able to improve the economy of the underdeveloped rural communities by increasing the value of agricultural products. The purpose of this study is 1) to identify and evaluate the training model carried out using training materials and personal training models, 2) develop the training model that are expected to optimize the improvement of knowledge and skills, 3) analyze the effectiveness of the training model. The approach used in this study refers to research and development (R & D) research. The development research procedure adopted the modified steps from Sugiyono, including: (1) the potential and problems; (2) data collection; (3) training model design; (4) validation of the training model; (5) revision of the training model; (6) limited trials of training models; (7) the final model. The results of the research on the development of training models for making artificial fish feed have been validated by experts using the Aiken's V formula with a validity coefficient of> 0.30, the results of the pretest and posttest of all participants increased consequently the developed model can be applied. Feeds resulted from the training are usable since it was responded by the fish. Unfortunately it is not waterproof. The training program is considered practical because it received positive responses from the participants. This research produced a valid, effective and practical feed production training model.
The Development of Industrial Work Practice Monitoring by Using Simorin at Vocational High School Mahanani, Fauzan A; Sudana, I Made; Wibawanto, Hari
Journal of Vocational and Career Education Vol 2, No 1 (2017): July 2017
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jvce.v2i1.11095

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Vocational High School graduates are expected to have work experience in industry and ready to enter the workforce. Industrial work practice (Prakerin) is a learning program that must be implemented by students in the industrial world. Prakerin program is organized together between school and the world of work to meet the students' need for competencies that are unworkable in schools. There are still major obstacles in monitoring the implementation of Prakerin due to distance and time problems. These constraints are expected to be solved using information system.This research and development aims to produce an effective and effective information system on industrial work practice monitoring to be used in vocational high school. This study developed information system named "Simorin" which is an acronym of the Industrial Work Practice Monitoring Information System. The method used in the study was research and development (R & D). Stages in this study included analysis phase, data requirement by using literature study and field study. The test phase was performed with validation and revision followed by a limited trial of Simorin products.Based on the development, test and analysis, it can be concluded that Simorin was feasible and effective for use in Prakerin monitoring process in terms of usability. Students, Teachers and industries could communicate with each other in real time. Recommendation of further development of Simorin is that it can be integrated with distance learning (e-learning).
The Development of Self Directed Learning Model (SDL) for Basic Competence in Analyzing Video, Animation AND/OR Digital Music Syarifudin, Muhammad Nanda; Wibawanto, Hari; Syamwil, Rodia
Journal of Vocational and Career Education Vol 4, No 2 (2019): December 2019
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jvce.v4i2.24879

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One of the problems employing learning media is the incompetence in operation and application procedures. An apparent lack of using the audio video as a learning media causes by the teachers themselves. The purpose of the study is to arrange a model of self-directed learning (SDL) with audio-visual media to measure students’ result in terms of independence and proficiency that are valid, reliable and effective. Research and Development (R&D) method was employed to conduct the research with Four-D model of Thiagarajan. The eligibility of SDL model was tested with CVR in the aspect of validity, meanwhile the reliability was measured with Kappa statistics. The effectiveness of SDL was tested with t-test of dependent variable in terms of students’ independence and proficiency in operating the audio/video devices as learning media. The result showed that the validation of audio/video media, according to the three evaluators, was categorized into valid, the reliability was marked substantial, and the effectiveness of improvement related to students’ result in terms of independence and proficiency using SDL showed t-posttest 5,342, significantly, was effective to be employed. The conclusion of this study was that the SDL model with audio video media to acquire basic competence in analyzing video, animation and/or digital music production were reliable, eligible and effective, therefore could be applied.
PEMANFAATAN MEDIA SOSIAL DALAM PELATIHAN PENELITIAN TINDAKAN KELAS PADA GURU-GURU SMKN 1 SRAGI PEKALONGAN Wibawanto, Hari
Edu Elektrika Journal Vol 7 No 2 (2018): Edu Elektrika Journal
Publisher : Electrical Engineering, Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/eej.v7i2.29140

Abstract

Tujuan dari kegiatan pengabdian kepada masyarakat ini adalah: (1) mendeskripsikan kemampuan guru SMKN 1 Sragi dalam menyusun proposal dan melaksanakan kegiatan penelitian tindakan kelas, setelah menerima kegiatan pelatihan tatap muka yang disertai pembimbingan melalui media sosial, dan (2) mendeskripsikan respon para guru SMKN 1 Sragi terhadap pelatihan penyusunan proposal dan pelaksanaan kegiatan penelitian tindakan kelas yang dilaksanakan secara tatap muka disertai pembimbingan melalui media sosial. Pengabdian kepada masyarakat ini menggunakan metode pelatihan. Subjek kegiatan adalah para guru pegawai negeri sipil di Sekolah Menengah Kejuruan Negeri (SMKN) 1 Sragi Pekalongan. Pelaksanaan kegiatan pelatihan dilaksanakan dalam 4 tahapan, yakni: (1) perencanaan, (2) pelaksanaan, (3) pemantauan dan evaluasi, (4) refleksi dan penutup. Keempat tahap dilakukan dengan menggunakan pembimbingan secara kombinasi antara tatap muka dan daring. Kegiatan tatap muka dilaksanakan sebanyak 3 kali, yakni bulan Januari 2018, bulan April 2018, dan bulan September 2018. Diantara Januari sampai September, kegiatan pembimbingan secara daring tetap dibuka dan melayani para peserta kegiatan selamat 24 jam sehari 7 hari seminggu. Evaluasi hasil kegiatan dilakukan dengan pengumpulan dokumen hasil kegiatan berupa naskah proposal penelitian tindakan kelas dan instrumen penelitian yang menyertainya, dan pengumpulan data respon atau tangapan peserta pelatihan terhadap kegiatan program pelatihan yang diselenggarakan. Hasil kegiatan pelatihan berupa: (1) 23 naskah proposal penelitian tindakan kelas dari 23 peserta pelatihan, (2) 23 paket instrumen penelitian yang digunakan sebagai alat ukur variabel penelitian tindakan kelas, (3) respon positif peserta pelatihan terhapat penyelenggaraan kegiatan pelatihak.
Co-Authors - Kustiono -, Widya A Tri Widodo Achsin, Muchammad Achsin Adhi Susanto Agus Murnomo Agus Suryanto Alfa Faridh Suni Amat Basir, Amat Anan Nugroho Anan Nugroho Anggraini Mulwinda Anita, Yopi Arfriandi, Arief Aris Munandar Budi Sunarko Budiarso, Alfian Budiarso, Alfian Dewi Ayu Sulistyaningrum Dharu Wihartasih, Dharu Dina Priliyana Djoko Widodo Dwi Oktaviyanti Dwi Oktaviyanti, Dwi Eko Purwanti Eko Saputro, Eko Eko Supraptono Esti Rahmawati, Esti FAUZI, ANAS Firyomanto, Firyomanto Hapsari, Widya Haryono Haryono I Made Sudana Ika Umaya Sinta, Ika Umaya Indaryanto, Faizal Juliantri, Luqman Azhar Juliantri, Luqman Azhar Kartono - Khairun Nisa Meiah Ngafidin Kurniawan, Eliv Lestari, Ria Rosita M Asysyifaul Firdaus Mahanani, Fauzan A Mariam, Metta Mikha Bimantara Warsito, Mikha Bimantara Moh. Eki Riyadani Muhammad Khumaedi Muhammad Yan Eka Adiptya Noor, Muhammad Elfin Noor, Muhammad Elfin Nugroho, Anan Nur Iksan Nur Laely Fatimah, Nur Laely Puji Astuti Rais Alfian Ansharullah, Rais Alfian Rodia Syamwil S. Maesadji Tjokronegoro Samsudi Samsudi Savitri, Dina Wulung Slamet Seno Adi Subiyanto Sumianingrum, Ninok Eyiz Sumianingrum, Ninok Eyiz Susilo, Dwi Budi Syarifudin, Muhammad Nanda Tatyantoro Andrasto Thomas Sri Widodo Tito Suryono Totok Sumaryanto Florentinus, Totok Sumaryanto Usman Channy Affandi, Usman Channy Wahyu Hardyanto Wibowo, Hilal Aji Wibowo, Hilal Aji Widya Puji Astuti, Widya Puji Wiji Wahyudi, Urip Muhayat Wiji Wahyudi, Urip Muhayat Windrajaya, Eko Rudy Wiwik Handayani Wulandari, Dania Ayu