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All Journal IAES International Journal of Robotics and Automation (IJRA) Jurnal Pembangunan Pendidikan: Fondasi dan Aplikasi Jurnal Penelitian Saintek El-Hayah : Jurnal Biologi Biota: Jurnal Ilmiah Ilmu-Ilmu Hayati Pedagogi Hayati JPPPF (Jurnal Penelitian dan Pengembangan Pendidikan Fisika) SPEKTRA: Jurnal Kajian Pendidikan Sains SEJ (Science Education Journal) BIOEDUKASI Jurnal Ilmiah Pendidikan Fisika Journal of Science Education Research PENDIPA Journal of Science Education Diklabio: Jurnal Pendidikan dan Pembelajaran Biologi JURNAL ILMIAH PETERNAKAN TERPADU Sainmatika: Jurnal Ilmiah Matematika dan Ilmu Pengetahuan Alam Jurnal Biosilampari: Jurnal Biologi COMPTON: Jurnal Ilmiah Pendidikan Fisika JPBIO (Jurnal Pendidikan Biologi) PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat Jurnal Biotek IJEEM - Indonesian Journal of Environmental Education and Management Kasuari: Physics Education Journal (KPEJ) Agroteknika Abdimas Universal ULIN: Jurnal Hutan Tropis Silampari Jurnal Pendidikan Ilmu Fisika Dharma Raflesia : Jurnal Ilmiah Pengembangan dan Penerapan IPTEKS Eduproxima : Jurnal Ilmiah Pendidikan IPA Hydrogen: Jurnal Kependidikan Kimia Bioscientist : Jurnal Ilmiah Biologi DIKSAINS : Jurnal Ilmiah Pendidikan Sains JURNAL HUTAN TROPIS Filogeni: Jurnal Mahasiswa Biologi Andromeda: Jurnal Pengabdian Masyarakat Rafflesia
BHAKTI KARYADI
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Agriculture, Biological Sciences & Forestry Humanities Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemistry Civil Engineering, Building, Construction & Architecture Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Physics Public Health Social Sciences Other

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Aplikasi Konsep Sains dalam E-Comic Bencana Banjir untuk Meningkatkan Keterampilan Berpikir Kritis dan Membekalkan Kesiapsiagaan Bencana Siswa SMP Laberta, Tinu; Nursa’adah, Euis; Mayub, Afrizal; Karyadi, Bhakti; Bramastia
COMPTON: Jurnal Ilmiah Pendidikan Fisika Vol 11 No 2 (2025): Compton: Jurnal Ilmiah Pendidikan Fisika
Publisher : Prodi Pendidikan Fisika Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/cjipf.v11i2.20882

Abstract

Low levels of disaster literacy and critical thinking among students highlight the need for innovative and contextualized learning media in science education. This research develops and evaluates the effectiveness of a flood disaster mitigation science E-comic to enhance students’ critical thinking and disaster preparedness. The study employed a Research and Development (R&D) approach using the 4D model (Define, Design, Develop, and Disseminate). Validation results indicated that the E-comic is feasible as a learning medium, with CVI values of 0.89 (media) and 1.00 (content). The use of the E-comic effectively improved students’ critical thinking skills and disaster preparedness, as evidenced by high N-Gain scores and significant statistical results. The improvement was consistently observed across all disaster preparedness indicators, including knowledge, attitudes, and response planning. The study concludes that the flood disaster mitigation E-comic is both effective and feasible as a contextual science learning medium. The integration of flood-related physical science concepts demonstrates how contextualized media can strengthen scientific literacy in disaster education.
Kemampuan Filter Alami Berbasis Kulit Pisang (Musa paradisiaca L.) dalam Penjernihan Air Sihite, Nadia Okta Kristiana; Sutarno, Sutarno; Parlindungan, Deni; Johan, Henny; Karyadi, Bhakti
Bioscientist : Jurnal Ilmiah Biologi Vol. 11 No. 2 (2023): December
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v11i2.9161

Abstract

Waste from male banana peels (Musa paradisiaca Var. Paradisiaca), Ambon banana peels (Musa paradisiaca Var. Sapientum), and kepok banana peels (Musa acuminate L.) can be used as natural water filtration. The content of pectin, galacturonic acid and cellulose in banana peels can absorb heavy metals in water. This research aims to determine the filtration ability of natural waste materials such as kepok banana peels, Ambon banana peels and male banana peels which are most effectively used as water filtration media. This research consists of the sample preparation stage, carbonization stage, activation stage, and trial stage. The method used is an experimental method on a laboratory scale to measure Potential Hydrogen (pH), Total Dissolve Solid (TDS), and the level of clarity in water. The data obtained was tested using the Anova test with a significance level of 5% and the BNT test. Based on the BNT test which shows that male banana peels are not significantly proportional to the TDS of well water. Meanwhile, Ambon banana peel and Kepok banana peel are significantly proportional to TDS, and for Kepok banana peel, Ambon banana peel and male banana peel, it is significantly proportional to the pH of well water, because the significance results are less than 0.05%. From these findings it can be concluded that Kepok banana peels and Ambon banana peels are the most effective water filtration media to use.
Desain Habitat Buatan Kura-kura Batok (Cuora amboinensis) di Area Konservasi Eksitu Universitas Bengkulu Saputra, Fajar Eko; Karyadi, Bhakti; Parlindungan, Deni; Sutarno, Sutarno; Ruyani, Aceng; Indriyanti, Nurma Yunita
Bioscientist : Jurnal Ilmiah Biologi Vol. 12 No. 1 (2024): June
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v12i1.11097

Abstract

Cuora amboinensis has experienced a population decline of 50–80 percent in CITES Appendix II since 2000 and is currently endangered (EN) or threatened with extinction, so it is important to preserve it. Bengkulu University's ex-situ conservation involves the preservation of Sumatran turtles obtained from collectors in the Bengkulu area. This research aims to design an artificial habitat in an effort to conserve Cuora amboinensis This research method uses an ecological-based design. The research subject was Cuora amboinensis Data collection methods include field observations, literature studies, discussions with turtle conservation experts, and monitoring environmental conditions. The research instrument uses environmental sensors to measure abiotic data. Data analysis was carried out descriptively with systematic research and analysis with field findings supported by previous researchers' findings and equipped with documentation images and a table presentation of environmental sensor data. The research results explain the stages in designing an artificial habitat for Cuora amboinensis, namely site selection and design, fencing and security, adaptation and acclimation, dividing areas based on function and providing supporting biota, nest building, and monitoring environmental conditions. The conclusion of this research Overall, this habitat design provides an optimal environment for Cuora amboinensis so that it can be used as a reference for conservation.
Analisis Deskriptif Pertumbuhan dan Perkembangan Cacing Tanah (Lumbricus rubellus) dengan Variasi Pakan Ampas Tahu dan Kotoran Sapi Sari, Nurma Yunita; Koto, Irwan; Ruyani, Aceng; Yani, Ariefa Primair; Karyadi, Bhakti
Bioscientist : Jurnal Ilmiah Biologi Vol. 12 No. 1 (2024): June
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v12i1.11200

Abstract

Earthworms (Lumbricus rubellus) are beneficial invertebrates that reduce waste, animal feed, and cosmetic raw material. The research was conducted at Ruyani Life Sciences Learning Resources (SBIH), Bengkulu (Ruyani et al., 2018), from September to November 2023. The design of this study adopted a Complete Randomized Design (RAL) consisting of five experimental groups with different feed comparisons (in %).Earthworm growth and development are optimized in their natural habitat, which includes temperatures ranging from 15℃ to 25℃, soil moisture and air availability between 15% and 30%, soil pH levels between 6.0 and 7.2, and the presence of organic matter for food. The study fed earthworms a diet consisting of tofu residues and cow dung in different proportions: (a) 100% tofu residues and 0% cow dung; (b) 75% tofu residues and 25% cow dung; (c) 50% tofu residues and 50% cow dung; and (d) 25% tofu residues and 75% cow dung. The research findings indicated that the ideal feed composition for maximizing earthworm biomass production is 25% tofu residues and 75% cow dung. Additionally, the most effective ratio of individual earthworms throughout a four-week maintenance period is 75% tofu residues and 25% cow dung.
Pengaruh Variasi Persentase Pakan Ampas Tahu dan Kotoran Sapi terhadap Pertumbuhan Cacing Tanah (Lumbricus rubellus) Heryensi, Elza; Ruyani, Aceng; Wardana, Rendy Wikrama; Karyadi, Bhakti; Sutarno, M.
Bioscientist : Jurnal Ilmiah Biologi Vol. 12 No. 1 (2024): June
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v12i1.11246

Abstract

This research was carried out from November to December 2023, at the Ruyani Life Sciences Learning Resources (SBIH). The aim of this research was to determine the effect of feeding tofu dregs and cow dung on the growth of earthworms (Lumbricus rubellus). The method used in this research was an experimental method, namely a Completely Randomized Design (CRD) with 6 feed treatments + 3 repetitions for continuation of undergraduate student research and 6 feed treatments + 3 repetitions for initiation. Data analysis used the Kruskall-Wallis nonparametric statistical test with Asymp. Sig. values. ≤ 0.05, and continued with the Mann-Whitney test. The research results show that the value of Asymp. Sig. parent biomass, offspring biomass, number of parent individuals, and number of Lumbricus rubellus offspring in sequence, in the 1st to 4th week of follow-up research Asymp. Sig. values. namely 0.086; 0.036; 0.140; and 0.064. In the 5th to 8th week of further research, the Asymp. Sig. value. namely 0.168; 0.047; 0.176; and 0.095. And in the 5th to 8th weeks of the research, the Asymp. Sig. value was initiated. namely 0.062; 0.010; 0.434; and 0.013. The conclusion was that feeding tofu dregs and cow dung had no real effect on parent biomass and number of parent individuals, and there was a real difference in offspring biomass and number of Lumbricus rubellus offspring in the initial study.
Komunitas Belajar dalam Lesson study untuk Memberdayakan Kognitif dan Psikomotor Siswa pada Pembelajaran Biologi di Luar Kelas Zukmadini, Alif Yanuar; Lestari, Puji; Rochman, Syaiful; Karyadi, Bhakti
Bioscientist : Jurnal Ilmiah Biologi Vol. 13 No. 2 (2025): June
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v13i2.14844

Abstract

This study aims to enhance cognitive and psychomotor abilities through outdoor learning, designed and evaluated collaboratively by the learning community within the framework of the Lesson study. The study was conducted on grade X students of MAN Insan Cendekia Bengkulu Tengah. Lesson study was carried out in two cycles, each consisting of the plan, do, and see stages. The "plan" stage is the planning stage to prepare the learning tools and strategies that will be carried out. The "do" stage is the implementation of the learning that has been designed. The "see" stage is a reflection of the learning activities that have been carried out. The instruments used consist of observation sheets and test paper. Data is analyzed by calculating the average percentage of each observation indicator, while cognitive and psychomotor learning outcomes are analyzed by calculating the average value obtained. Implementation of the lesson study achieved a percentage score of 100%. Cognitive learning outcomes from cycle I to cycle II increased by 20.43%. Meanwhile, psychomotor learning outcomes increased by 26.79%. The ecosystem acts as a direct learning context that does not only present objects of study to be studied but can also facilitate students to develop conceptual understanding and scientific skills simultaneously. Thus, the reflection carried out will encourage teachers to make continuous improvements. The conclusion of this study is that lesson study activities involving the role of the learning community can improve the planning, implementation, and reflection of biology learning outside the classroom, thus having a significant impact on improving students' cognitive and psychomotor learning outcomes.
Studi Ekologi Makroinvertebrata di Area Kolam Konservasi Ex-situ Kura-Kura Siebenrockiella crassicollis di Universitas Bengkulu Hasbi; Karyadi, Bhakti; Parlindungan, Deni; Uliyandari, Mellyta; Defianti, Aprina
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 10, No 1 (2025): February 2025
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24002/biota.v10i1.9730

Abstract

Makroinvertebrata merupakan organisme tidak bertulang belakang yang memiliki ukuran kasat mata, memiliki habitat di darat, dalam  tanah, perairan meliputi air laut dan tawar. Kelompok makroinvertebrata di perairan bisa dijadikan bioindikator suatu perairan. Makroinvertebrata di perairan air tawar contohnya kelompok keong air tawar, serangga air, udang dan Clitellata seperti lintah. Penelitian dilakukan pada bulan Oktober 2023 sampai Januari 2024 menggunakan teknik purposive sampling. Pengambilan sampel menggunakan leaf litter bags, jaring seser, dan mengambil sedimen dasar perairan menggunakan ember. Pengukuran parameter lingkungan dilakukan meliputi pengukuran intensitas cahaya, suhu air, tingkat keasaman (pH), oksigen terlarut (DO), kedalaman lumpur, dan kedalaman air. Analisis data menggunakan indeks Shannon-Wiener, indeks Eveness dan indeks Simpson. Hasil identifikasi makroinvertebrata menunjukkan terdapat 16 spesies terdiri atas 13 famili dan 4 kelas. Indeks keanekaragaman makroinvertebrata di area kolam konservasi ex-situ kura-kura Siebenrockiella crassicollis Universitas Bengkulu secara umum tekanan ekologis berada pada kondisi tekanan rendah hingga sedang, dapat dilihat pada nilai H’ berkisar antara 0,981 sampai 1,577, indeks keseragaman berkisar antara 0,354 sampai 0,569 dan indeks dominansi berkisar antara 0,342 sampai 0,506. Kelimpahan, keanekaragaman, keseragaman dan dominansi makroinvertebrata dipengaruhi oleh parameter fisika kimia dan kondisi lingkungan. 
Integrasi Mitigasi Bencana Global Warming pada Materi Pembakaran Hidrokarbon melalui Pendekatan RBL-STEAM Shabrina, Annida Nurul; Karyadi, Bhakti
Hydrogen: Jurnal Kependidikan Kimia Vol. 11 No. 6 (2023): December 2023
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v11i6.9911

Abstract

AbstractThe primary objective of this paper is to address the mitigation of disasters resulting from climate change and global warming. Such disasters are the result of increased greenhouse gas emissions, primarily caused by human activities like deforestation and the use of fossil fuels. To analyze the concept of hydrocarbon combustion from basic competencies (KD) 3.3 and 4.3 of chemistry class XI, we employed a qualitative descriptive method supported by a literature review. The paper investigates the relationship between climate change, the greenhouse effect, the carbon cycle, and their effects on the environment and health. Furthermore, it proposes a learning design that combines the Research-Based Learning (RBL) model with the STEAM approach to enhance students' comprehension of climate change, the consequences of hydrocarbon combustion, and emergency response measures. One of the highlighted learning strategies is the creation of an interactive and engaging mini park mockup to facilitate student understanding. The use of technology, specifically machine learning, is recommended for decision making in global warming disaster mitigation. This paper stresses the significance of integrating chemistry learning for knowledge and skills development in KD 3.3 and 4.3, and for understanding global warming and disaster mitigation efforts. The goal is to provide students with science literacy skills as well as the ability to identify concrete actions in reducing the negative impacts of climate change.
Study of dogania subplana aclimatization in the turtle learning center university of bengkulu Marliansa, Meiredo; Karyadi, Bhakti; Parlindungan, Deni; Ruyani, Aceng; Nursa'adah, Euis
JPBIO (Jurnal Pendidikan Biologi) Vol 10, No 2 (2025): November 2025
Publisher : STKIP Persada Khatulistiwa Sintang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31932/jpbio.v10i2.4953

Abstract

The forest softshell turtle (Dogania subplana) is a species increasingly threatened by habitat destruction and overexploitation. This study aims to identify the acclimatization process of D. subplana in an artificial environment, specifically, an aquarium at the Turtle Learning Center (TLC). The research was conducted over 30 days from July to August 2024. Observations were made on daily behavior, body temperature, and health condition, individual biometric measurements, and environmental (abiotic) parameters. The results showed that daily behaviors such as feeding, basking, and hiding occurred regularly, indicating the species' ability to adapt to a new environment. The turtles experienced an increase in body weight, while growth in carapace length and width was very slow. The body temperature of D. subplana varied in accordance with the surrounding environmental temperature, reflecting its dependence on ambient conditions. Some individuals experienced minor health issues, such as fungal infections, but the majority remained active and healthy. Environmental factors such as temperature, humidity, pH, dissolved oxygen, total dissolved solids, and light intensity were within ranges conducive to acclimatization. These findings suggest that the aquarium at the TLC is quite effective as an ex situ conservation facility in supporting the adaptation process of D. subplana  outside its natural habitat.
PENGARUH PENERAPAN PEMBELAJARAN IPA TERPADU TIPE SHARED PADA TEMA PEDULI LINGKUNGAN TERHADAP PENGUASAAN KONSEP SISWA SMPN 9 KOTA BENGKULU Sembiring, Evata Disolva br; Sutarno, Sutarno; Uliyandari, Mellyta; Taufik, Annisa Novianti; Karyadi, Bhakti
DIKSAINS : Jurnal Ilmiah Pendidikan Sains Vol. 6 No. 1: Desember 2025
Publisher : Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/diksains.6.1.69-78

Abstract

ABSTRAK   Penelitian ini bertujuan untuk mengetahui pengaruh penerapan pembelajaran IPA terpadu tipe shared terhadap penguasaan konsep siswa, besar pengaruh penerapan pembelajaran IPA terpadu tipe shared terhadap penguasaan konsep siswa dan tanggapan siswa dalam penerapan pembelajaran IPA terpadu tipe shared terhadap penguasaan konsep siswa. Penelitian ini menggunakan satu kelas eksperimen dengan sampel penelitian adalah siswa kelas VII A yang berjumlah 31 siswa. Metode dalam penelitian ini adalah pre-experimental dengan desain one-grup pretest-posttest design. Berdasarkan hasil analisis data penguasaan konsep menggunakan uji t paired, diperoleh nilai signifikansi menunjukkan 0,005<0,05 sehingga Ho ditolak dan Ha diterima. Hasil perhitungan diperoleh besarnya effect size Cohen’s d sebesar 0,37 menunjukkan bahwa terjadi pengaruh yang sedang. Serta analisis angket tanggapan siswa diperoleh semua indikator berkategori baik dengan perolehan skor rata-rata sebesar 83,3. Sehingga dapat ditarik kesimpulan bahwa penerapan pembelajaran IPA terpadu tipe shared memberikan pengaruh yang signifikan terhadap penguasaan konsep siswa kelas VIIA SMPN 9 Kota Bengkulu.     Kata kunci : Pembelajaran IPA, Tipe Shared, Peduli Lingkungan, Penguasaan Konsep   ABSTRACT   This study aims to determine  the effect of the application of shared type integrated science learning on students' concept mastery, the effect of the application of shared type integrated science learning on students' concept mastery and students' responses in the application of shared type integrated science learning on students' concept mastery. This study uses one experimental class with the research sample is VII A class students totaling 31 students. The method in this research is pre-experimental with one-group pretest-posttest design. Based on the results of concept mastery data analysis using paired t test, the significance value shows 0.005 <0.05 so Ho is rejected and Ha is accepted. The calculation results obtained the magnitude of the effect size Cohen's d of 0.37 indicates that there is a moderate influence. As well as the analysis of student response questionnaires obtained all indicators are categorized as good with an average score of 83.3. So it can be concluded that the application of shared-type integrated science learning has a significant effect on the mastery of the concept of students in class VIIA SMPN 9 Bengkulu City.   Keywords : Science Learning, Shared Type, Environmental Care, Concept Mastery
Co-Authors A.A. Ketut Agung Cahyawan W Abdul Rahman Singkam ACENG RUYANI Adriataspen, Milzen Afrizal Mayub Alif Yanuar Zukmadini Alif Yanuar Zukmadini anjelie, Anggi Apriansyah, Rapi Aprina Defianti ardana, Rendy Wikrama W Arestu, Olyvia Oshi Ariefa Primair Yani Ariefa Primair Yani Arrosid, Muhammad Reza Arsela Eko Listiono As-Salimah, Ainun Mardiyah Asrati, Sirtika Aswin, Pani Bambang Prayogo, Bambang Bramastia Budiyanto Budiyanto CHOIRUL MUSLIM Dara, Niki Dwi Dia Defianti, Aprina Deni Parlindungan Devicawati, Devicawati Dewi, Novi Ratna Ekaputri, Rendi Zulni Elsi Adelia Fitri Elza Heryensi, Elza Heryensi Endang Widi Winarni Endang Widi Winarni Erna Yunita Sari Euis Nursa’adah Fahmizal, Fahmizal Faritzah, Chika Putri Febrianti, Een Suci Fema Anggriani Fidia Fibriana Fira Pratiwi Firdaus, M Luthfi Hardiansyah, Akbari Haryono, M. Hasbi Henny Johan Henny Johan HERNANI - Heryensi, Elza ICE PURNAMAWATI Indra Sakti Irdam Idrus Irwan Koto, Irwan Irwandi Ansori Irwandi Ansori Iwan Setiawan Julianti, Apri Kasrina Kasrina Kurniasih, Septi Laberta, Tinu Lestari, Dita Indah Lina Mahardiani M. Lutfi Firdaus, M. Lutfi Marliansa, Meiredo Maulana, Yudi Mayub, Afrizal Meri Suterisni Muhammad Farid Mustika, Reni Neni Murniati Nirwana Novianjani, Mutiara Nur Farida Nurma Yunita Indriyanti Nurohma, Siti Nursaadah, Euis Nursa’adah, Euis Panjaitan, Anton Parlindungan, Deni PUJI LESTARI Putriani, Eli Puyanti, Puyanti Raden Mohamad Herdian Bhakti Rahmadaniya, Novita Lola Rendy Wikrama Wardana Riezky Maya Probosari Rinda Fitri Handayani Riska, Dara Rochman, Syaiful Roleka Julia Marcellina Ronggo Waskito, Jefri Roni Sastiawan Rosdiantini, Rosros Ruyani , Aceng Sagita, Fitria Saputra, Fajar Eko Sari, Ega Dwi Permata Sari, Fenty Fitrian Sari, Nurma Yunita Sembiring, Evata Disolva br Setiawati, Nindya Puri Shabrina, Annida Nurul Sihite, Nadia Okta Kristiana Simamora, Johannes Anju Gabriel Sri Irawati SRI RAHAYU Sudirman Sudirman Sukarso, A.A. Sumiyati - Sutarno Sutarno Sutarno Sutarno, M Sutarno, M. Syaiful Rochman Taufik, Annisa Novianti Triana, Dini Fajar Uliyandari, Mellyta Umaya Utami, Gita Nita Wahyuningsih, Endah Tri Wardana, Rendy Wikrama Wiryono Wiryono Wiwit Trisnawati Yani, Rita Fitri Yennita Yosie Andriani Yulianingsih, Elysabet Yulinda Fitriani Zahrani , Arifah