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All Journal International Journal of Renewable Energy Development BERKALA FISIKA SAINS DAN MATEMATIKA Jurnal Ilmu Lingkungan Jurnal Perikanan dan Kelautan YOUNGSTER PHYSICS JOURNAL Jurnal Teknik Sipil Scientific Journal of Informatics Jurnal Manajemen Pendidikan (JMP) International Journal of Artificial Intelligence Research Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal Biologi Tropis Solidaritas Jurnal Akuatiklestari Aquasains : Jurnal Ilmu Perikanan dan Sumberdaya Perairan e-Jurnal Rekayasa dan Teknologi Budidaya Perairan Journal of Physics and Its Applications JSiI (Jurnal Sistem Informasi) Jurnal Pengembangan Riset dan Observasi Teknik Informatika Dialogia: Jurnal Studi Islam dan Sosial Jurnal Sains Teknologi Akuakultur Journal of Machine Learning and Soft Computing Journal of Tropical Marine Science Jurnal Fisika Indonesia Jurnal Ners Jurnal Abdi Insani Jurnal Ilmiah Abdi Mas TPB Unram Jurnal Kesehatan Tambusai Arwana: Jurnal Ilmiah Program Studi Perairan JOURNAL LA MEDIHEALTICO Journal of Islamic Philanthropy and Disaster Journal of Community Development and Disaster Management Journal of Communication Studies Jurnal Al-Qayyimah Academic Physiotherapy Conference Proceeding Mandala of Health : A Scientific Journal Jurnal Keperawatan Jurnal Riset Rumpun Ilmu Sosial, Politik dan Humaniora (JURRISH) Depik Jurnal Ilmu-Ilmu Perairan, Pesisir dan Perikanan Social Science Academic Journal of Community Service and Society Empowerment Proceeding of International Conference of Islamic Education Global Forest Journal Jurnal Pengabdian Fakultas Pertanian Universitas Lampung Oftalmologi: Jurnal Kesehatan Mata Indonesia Economic, Accounting Scientific Journal (CASH) Depik Jurnal Ilmu-Ilmu Perairan, Pesisir, dan Perikanan Journal of Community Services and Engagement: Voice of Community (VOC) Jurnal Perikanan dan Kelautan Jurnal Perikanan JLTLL
Agus Setyawan
Department Of Physics, Faculty Of Science And Mathematics, Diponegoro University, Semarang
Religion Agriculture, Biological Sciences & Forestry Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Dentistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Immunology & microbiology Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Neuroscience Nursing Physics Public Health Social Sciences Veterinary Other

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RANCANG BANGUN SISTEM KEAMANAN PINTAR PADA PINTU KAMAR MENGGUNAKAN RFID, PASSWORD DAN ANDROID BERBASIS ARDUINO UNO Setyawan, Agus; Prabowo, Muhammad Nur; Suseno, Jatmiko Endro
BERKALA FISIKA Vol 23, No 1 (2020): Berkala Fisika
Publisher : BERKALA FISIKA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (146.101 KB)

Abstract

The security system is very important for someone who often leaves his/her home or private room that can be used by perpetrators of crimes such as thieves. In this case, a tool is needed to anticipate this crime. Security is needed to protect ourselves and our valuable assets. In this study, a tool was used to secure a room by replacing a conventional door lock with a solenoid which can only be opened if entering passwords, cards or commands from the smartphone is correct. If entering a password or card is incorrect, then the system will lock the door automatically and sound an alarm for the specified time limit. if it is correct to enter a password or card then the system will open the solenoid and the door will open automatically without having to push the door. In addition to providing good safety, it also provides a practicality that is quite good because the door can be opened and locked automatically since we often forget ourselves to lock the door.
Subsurface Structure and Fluid Flow Analysis Using Geophysical Methods in the Geothermal Manifestation Area of Paguyangan, Brebes, Central Java Setyawan, Agus; Triahadini, Agnis; Yuliananto, Yayan; Aribowo, Yoga; Widiarso, Dian Agus
International Journal of Renewable Energy Development Vol 5, No 3 (2016): October 2016
Publisher : Center of Biomass & Renewable Energy, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ijred.5.3.171-177

Abstract

The indication of an active geothermal system is shown by the presence of surface manifestations such as the hot spring in Kedungoleng, Paguyangan, Brebes, Central Java. The temperature of the largest hot spring reaches 74o C and there is an assumption that this is an outflow of Mount Slamet geothermal system. DC-resistivity, Spontaneous Potential (SP) and Shallow Surface Temperature surveys were conducted to determine the subsurface structure as well as its correlation with the distribution of thermal fluid flow and shallow surface temperature. The subsurface resistivity has been investigated using 5 points of the Schlumberger configuration with 400 m separation for each point. For the fluid and temperature pattern, a measurement using 15 m interval in 3 lines of conducting fixed electrode configuration has been carried out, along with a 75 cm of depth of temperature measurement around the manifestation area. The thermal fluid is assumed by the low resistivity of 0.756 to 6.91Ωm and this indicates sandstone that has permeable characteristic. The fluid flows in two layers of Sandstone at more than 10 meter from surface of the first layer. Accordingly, the SP values have a range between -11- 11 mV and a depth interval of 13.42- 28.75 m and the distribution of temperature is between 24o-70oC at a tilting range of 46.06o-12.60o. Hence it can be inferred that the thermal fluid moves in the Northwest direction and is controlled by a fault structure stretching from Northwest to Southeast.Article History: Received Feb 3, 2016; Received in revised form July 11, 2016; Accepted August 13, 2016; Available onlineHow to Cite This Article: Setyawan, A., Triahadini, A., Yuliananto, Y., Aribowo, Y., and Widiarso, D.A. (2016) Subsurface Structure and Fluid Flow Analyses Using Geophysical Methods in Geothermal Manifestation Area of Paguyangan, Brebes, Central Java. Int. Journal of Renewable Energy Development, 5(3), 171-177.http://dx.doi.org/10.14710/ijred.5.3.171-177
IMPLEMENTASI MESIN PEMASAK NIRA AREN DILENGKAPI TEKNOLOGI "DUKASTO" GUNA MENINGKATKAN PRODUKTIVITAS GULA AREN DI DESA PLEDOKAN KECAMATAN SUMOWONO KABUPATEN SEMARANG Nurdiana, Asri; Dwimawanti, Ida Hayu; Setyawan, Agus
Jurnal Ilmiah Abdi Mas TPB Unram Vol 2, No 1 (2019): Edisi Januari 2020
Publisher : Teknik Pertanian Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/amtpb.v2i1.41

Abstract

Gula aren adalah pemanis yang dibuat dari nira yang berasal dari tandan bunga jantan pohon enau. Gula aren selalu menjadi bahan baku yang digunakan hampir di seluruh bahan makanan. Oleh karena itulah yang menjadi dasar pembukaan usaha kegiatan mandiri (UKM) di daerah Sumowono, Semarang. Proses pencampuran bahan masih dilakukan dengan alat yang sangat sederhana, sehingga prosesnya juga membutuhkan waktu cukup lama. Oleh karena itu, dibutuhkan alat bejana pemasakan nira lengkap dengan peralatan pengadukan, penataan tungku dengan menggunakan bahan bahan bakar gas atau alat pengisap debu, sehingga kualitas gula aren dapat meningkat. Dengan demikian gula aren yang dihasilkan mempunyai kualitas 1, sedangkan yang rafinasi gula aren dapat dihasilkan gula aren dengan kualitas 2, sehingga sesuai dengan apa yang telah ditargetkan, dimana pasar gula mareh maupun gula aren rafinasi meningkat 20 % tiap tahunnya.
ANALISIS POTENSI TANAH LONGSOR DI PADANGSARI BANYUMANIK SEMARANG Setyawan, Agus; Putra, Hisbicus Dwi Surya; Suseno, Jatmiko Endro; Yulianto, Tony
BERKALA FISIKA Vol 23, No 3 (2020): Berkala Fisika
Publisher : BERKALA FISIKA

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Abstract

Semarang city is a city that grew out of old settlement built on alluvial sediment. The conditions cause many natural disasters such as floods and landslides. Padangsari Village, Banyumanik District located in the Southern part with hilly morphology and lithology from Mount.Ungaran. Positive  potential  is  the  existences  of  material  for  development  that  are  useful  for  the community, otherwise the negative potential there is soil vulnerability than can cause landslide. Classification of positive and negative potentials is obtained from combining several data and factor  such  as:  rainfall,  slope,  groundwater  level,  lithology,  sedimentation  and  landuse.  All data were processed with ArcGis softwere and produces a potential map for the Padangsari Village. Hopefully the map will be useful for research and society in Padangsari to produce policy when infrastructure development.Keywords:  Landuse,  landslide,  rainfall,  slope,  groundwater  level,  lithology,  sedimentation, Padangsari
APPLICATION OF DEPOSITION BACK IN THE AQUAPONIC SYSTEM IN REDUCING NH3 IN CULTIVATION Tilapia (Oreochromis niloticus) Sitompul, Hotlan Albert Adventus; Efendi, Eko; Setyawan, Agus
Jurnal Perikanan dan Kelautan Vol 26, No 2 (2021)
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.26.2.131-136

Abstract

The success of a culture depends on the quantity and quality of water used in fish culture without water exchange, the concentration of aquaculture waste such as ammonia (NH3) will increase very rapidly and is toxic to the cultivated organism. One of the innovations applied in fish farming is integrating plants through an aquaponics system. This study aims to determine the effect of using a settling tub in reducing ammonia waste (NH3) and growth in tilapia aquaculture using an aquaponic tidal system. The size of the initial tilapia seeds used is 3-4 cm. There are two treatments used, without settling tub (A) and addition of settling tub (B) with three replications. However, the results showed no significant differences (P>0.05) between treatments for all parameters observed. It is necessary to carry out further research on different fish and plants to see the optimization in reducing ammonia waste (NH3).
Isolation and Screening of Amylolytic and Proteolytic Thermophilic Bacteria from Way Panas Hot Spring, Kalianda, South Lampung Mahestri, Laras; Harpeni, Esti; Setyawan, Agus
Jurnal Perikanan dan Kelautan Vol 26, No 3 (2021)
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.26.3.161-168

Abstract

Amylolytic and proteolitic activity from thermophilic bacteria have been observed from the Way Panas hot springs, Kalianda, South Lampung. This study aims to isolate and screen amylase and protease enzyme-producing thermophilic bacteria and their potential in fisheries. A total of 8 bacterial isolates were examined from the Way Panas hot spring, Kalianda. Each was cultured on selective medium for amylase and protease production. The results showed that 4 bacterial isolates were able to hydrolyze starch (A.WP.50.1, A.WP.50.1, A.WP.50.3, and A.WP.50.4) were able hydrolyze starch and no bacterial isolates had hydrolysis activity against protein. The highest activity of amylolitic was achieved by A.WP.50.4 bacteria isolate. Based on the phenotype, biochemistry assay, and 16s rDNA sequencing, the A.WP.50.4 bacteria isolate have high similarity and identified as Bacillus cereusAmylolytic and proteolitic activity from thermophilic bacteria have been observed from the Way Panas hot springs, Kalianda, South Lampung. This study aims to isolate and screen amylase and protease enzyme-producing thermophilic bacteria and their potential in fisheries. A total of 8 bacterial isolates were examined from the Way Panas hot spring, Kalianda. Each was cultured on selective medium for amylase and protease production. The results showed that 4 bacterial isolates were able to hydrolyze starch (A.WP.50.1, A.WP.50.1, A.WP.50.3, and A.WP.50.4) were able hydrolyze starch and no bacterial isolates had hydrolysis activity against protein. The highest activity of amylolitic was achieved by A.WP.50.4 bacteria isolate. Based on the phenotype, biochemistry assay, and 16s rDNA sequencing, the A.WP.50.4 bacteria isolate have high similarity and identified as Bacillus cereus
Comparative Analysis of Simple Additive Weighting Method and Weighted Product Method to New Employee Recruitment Decision Support System (DSS) at PT. Warta Media Nusantara Setyawan, Agus; Arini, Florentina Yuni; Akhlis, Isa
Scientific Journal of Informatics Vol 4, No 1 (2017): May 2017
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/sji.v4i1.8458

Abstract

Issue handling of inadvertence situations in the decision-making process of recruiting new employees at PT. Warta Media Nusantara that use criteria value of interviews, field test, a psychological test and medical check-up requires Multi Attribute Decision Making (MADM) as an auxiliary method of decision-making on the prospective eligible employee to be accepted in the company. There are various MADM methods, such as Simple Additive Weighting (SAW) method and Weighted Product (WP) method. Both of these methods are known as the most common method used in handling MADM issues, so in this study both methods are applied to the DSS and analyzed the differences in terms of obtained results and the execution time required for each method. The results of the study of the application of SAW and WP methods in the recruitment of new employees DSS there are some differences in the results of the candidates rank order and the differences in execution time of each method. The differences in rank order of these methods are due to the effects of alternative values, weighting criteria, and the calculation method. WP method is able to provide more rigorous result than SAW method, while the difference in execution time of SAW and WP methods explains that the execution time of SAW method relatively quick because SAW calculation method has a simpler process than the process of WP calculation methods 
INTERPRETASI STRUKTUR BAWAH PERMUKAAN DATA GAYABERAT MENGGUNAKAN ALGORITMA JARINGAN SARAF TIRUAN STUDI KASUS DAERAH PANAS BUMI UNGARAN, JAWA TENGAH Ratih Rundri Utami; Agus Setyawan; Rahmat Gernowo
Youngster Physics Journal Vol 5, No 4 (2016): Youngster Physics Journal Oktober 2016
Publisher : Jurusan Fisika, Fakultas Sains dan Matematika, Universitas Diponegoro

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Abstract

Artificial neural networks have been used in an application of geophysical such as seismic, electromagnetic, restivity, and gravity. In this study, artificial neural network system used is the method of propagation of gravity to produce anomalies corresponding to the desired anomalies on the geothermal area of Mount Ungaran, Central Java. In the training process to produce the best weight with 4 hidden layer with a correlation coefficient of 0.99 and the testing process using the results of the best training with a correlation coefficient of 0.97 and a yield value that resembles Bouguer anomaly in the research area., so it can be seen under the surface of the structure with the results of the best network where there is a high density value of 2.70 to 2.80 g/cm3 in lava basalt as geothermal systems Mount Ungaran. Density 2.40 to 2.80 g/cm3 Low contained in the surface area of Mount Ungaran with the majority of sedimentary rocks of andesitic pyroclastic products of Mount Ungaran Young.
VERTICAL TRANSVERS ISOTROPY (VTI) PRE STACK DEPTH MIGRATION ANISOTROPI UNTUK PENCITRAAN STRUKTUR BAWAH PERMUKAAN YANG LEBIH AKURAT Ibnu Rasid; Udi Harmoko; Agus Setyawan; Teguh Suroso
Youngster Physics Journal Vol 1, No 1 (2012): Youngster Physics Journal Oktober 2012
Publisher : Jurusan Fisika, Fakultas Sains dan Matematika, Universitas Diponegoro

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Abstract

Anisotropic Pre Stack Depth Migration method has been carried out for 2D seismic reflection data on Line “IR” The simplest form of anisotropic media (VTI (Vertical Transverse Isotropy) was used. Theoretically, this form requires two parameters to describe the media, those are δ (delta) and ε (epsilon). δ is an anisotropy parameter that describe velocity variation near to vertical while ε is an anisotropy parameter that describe velocity variation near to horizontal. The anisotropic Pre Stack Depth Migration produce a section which has corrected build up image and has change to be the true of reflector in 67 m of depth. Base on well and seismic data calculation process, an anisotropic parameter is in the range of 0.050-0.058. Generally, Anisotropy Pre Stack Depth Migration method gave better result than isotropy Pre Stack Depth Migration. Key Word: Anisotropy, Pre Stack Depth Migration, VTI, delta, epsilon
APLIKASI METODE TRANSFORMASI RADON UNTUK ATENUASI MULTIPEL PADA PENGOLAHAN DATA SEISMIK 2D LAUT DI PERARIRAN “X” Nona Dili Maricci; Agus Setyawan
Youngster Physics Journal Vol 4, No 4 (2015): Youngster Physics Journal Oktober 2015
Publisher : Jurusan Fisika, Fakultas Sains dan Matematika, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1485.559 KB)

Abstract

Multipel in marine seismic data is the noise formed due to the high impedance contrast at he boundary between layer. Multipel interfers the data processing that will also affect the interpretation of subsurface image. Radon transformation is one of the methods to attenuate the multipel. Radon transformation method is to transform the data of the domain time-offset (t-x) into a domain intercept time- ray parameter (τ-p). Primary wave and multipel will be separated with muting desain in domain (τ-p). At the end of this study to compare the result stacking preprocessing and stacking Radon. The result of the research shows that multipel in time 190-200 ms are attenuated.
Co-Authors A. Suhandi A.A. Ketut Agung Cahyawan W Achmad Samsudin Achmad Supriyadi, Achmad Adi Nugroho Agnis Triahadin Agnis Triahadini, Agnis Agung Prasetyo Agus Subagio Agus Susilo Agustina, Cynthia Ahwy Oktradiksa Akbar, Shofya Alfina, Ria Aliyatarrafiah Aliyatarrafiah Althafunnisa, Namyra Aisha Aman Damai, Abdullah Anik Fitrochaton Chasanah Ansori, Teguh Arif, Mas Achmad Syamsul Arlanda, Revilarita Asri Nurdiana, Asri Astuti, Andriani Mei Azis, Latif Saiful Azizah Azizah Azizi, Sandi Bambang Mujihardi Baroek, Marino Christiano Berta Putri Boko Nurdiyanto Brandan Tito Ramadhan Choirul Wahid, Imam Mustofa D Febrianty Dadan Dani Wardhana Damai, A Aman Dave Emmanuel Haning Dewi Mariyaningsih Dhana Hastuti Dimas Sidiq Baskoro Dita Aprilina Djalal Er Riyanto Dwi Purwantoro Sasongko Dwi Puspitasari Dwiki, Elba Dwiyanto JS Dzuelqarnain, Muhammad Essa eko efendi Elisdiana, Yeni Endriasmoro M Siagaan Esti Harpeni F M Arif Faizal Ahmad Fajar Waskito Fajrin, Fajrin fidhoh, kha Fidyandini, Hilma Putri Firdausi, Hilma Nahwa Fithria I D, Ni'matul Fitra Ramdhani Fitra Ramdhani Florentina Yuni Arini, Florentina Yuni Frysca Putti Muviana Fuad Tarmidzi Galang Virgiawan Ganap Y. Febrika Ganap Yuliana Febrika Ghufron Abdullah Gunawan, Riyan Habib, Farid Alif Harri Yudianto Hauzan, Noor Azmi Fachri Hauzan, Noor Azmi Fachri Hay's, Riyan Naufal Herbianto, Sheren Aurellya Hidayat, Muhammad Adil Hidayati, Ina Hilmi, Haidar Hirafiany Daruartati I Gusti Ngurah Antaryama I Nyoman Sujana Ibnu Rasid Ida Hayu Dwimawanti Ilham Nurdien Imam B. Raharjo Imam Baru Raharjo Imam Baru Raharjo Indah Asmoro Wulan Indra Gumay Febryano Irawan, Ady Isa Akhlis Isnain Gunadi Istikomah Istikomah Istiqomah Ari Kusuma Ita purnamasari, Ita Itasari, Andri Astuti Jatmiko Endro Suseno Jatmiko Endro Suseno Juliasih, Ni Luh Gede Ratna Kanthi Pamungkas Sari Kasanah, Nur Khafidhoh Khafidhoh, Khafidhoh Khairunissa, Hatifa Khasana, Devi Ardiyati Kholidin, Edy Barkat Kusno Adi Sambowo Kusumaningrum, Rahma Puspita Lendriadi A. Lestari, Kiki Indah Lestari, Sepnina Like Limin Santoso Linirin Widyastuti, Endang Listia, Octa Lutfiani, Ulfah M Wildan Firdaus Maharani, Ni Putu Diva Mahestri, Laras Mahmud Yusuf Malau, Victor Pandpotan Maya Riantini, Maya Maya Sekar Wangi Moch. Abdul Mukid Mohammed I. D. Matar, Mohammed Mualimin Mualimin Mualimin Mualimin Muchammad A Rofik Muchlis, Ibnu Mufita, Halimah Muhammad Irham Nurwidiyanto Muhammad Mualimin Muhammad Nur Muhammad Nur Handoyo Munti Sarida Murtiningtias Diah Ayu Martha Dewi Mustafid Mustafid Mutiatussholikah, Dita Muyasaroh, Evi Nafiisah, Nafiisah Naufal, Adnan Faris Ningsih, Setia Nisa Az Zuhdy, Afifah Nona Dili Maricci Noor Alis Setiyadi Noor, Huriyatul Fitriyah Noviana Fransiska Nuning Nurcahyani Nur Rachmaningtias Nurcahyo, Mugi Nurhadiyastuti, Ameilia Nuriyana Muthia Sani Nursamsiah Nursamsiah Nurul Khasanah, Nurul Nur`Ani Okta Trilia Octaviani Sarmauli Oki Hedriana Oky Irawan Sugiri Ophi Thio Rendy Parabi, Achmad Reza Parbuntian Sinaga Pitojo Budiono Prabowo, Muhammad Nur Priyo, Priyo Putra, Hisbicus Dwi Surya Qadar Hasani R. M. Tofan Sastranegara Rahayu, Wiji Rahaz, Muhammad Faiz Thoyib Rahmasari, Ikrima Rahmat Gernowo Ramadhan, Irvan Rara Diantari Ratih Rundri Utami Ratna Dewi Winesthi Redemtus Heru Tjahjana Rina Dwi Indriana Rina Hesti Utami Ririn Sulpiani Sakti, Doni Bilga Komara Sari, Azzahra Indah Satriyo Adhy Sela Ade Otaviana Setiawan, Aqshal Dwi Siti Fathonah Siti Hudaidah Siti Rohimah Sitompul, Hotlan Albert Adventus Subandoro, Agus Sudarno Sudarno Sugeng Widada Sugiharto, Sh Sumino, Sumino Supono Supono Supriyadi - Supriyadi - Susanti, Oktora Susanti, Susanto, Gregorius Nugroho Sutrisno, Ade TATI NURHAYATI Teguh Satya Bhakti Teguh Suroso Thessa Putri Aulia Tiara Qonita, Azhra Tiara Qonita Titik Haryati Tugiyono Tugiyono Udi Harmoko Wahyono, Catur Wahyu Eko Sulistiono Wardiyanto - Widiarso Dian Agus Widiastuti, Endang Linirin Winaldi, Iman Wisnu Agung Permadi Wiyatanto, M Toto Yasluh, Muhammad Sholukha Yatti Pratyas Katrinavia Yatti Pratyas Katrinavia Yayan Yuliananto Yayan Yuliananto Yeni Indriyani Yoga Aribowo Yudha T Adiputra Yudha Trinoegraha Adiputra Yundari, Yundari Yuniarti, Siti Yusup, Maulid Wahid Zainal Abidin Zaini, Syakila Zulfikar Zafeskan Ronapati