Article Per Year (5 Year)
p-Index From 2021 - 2026
4.027
P-Index
This Author published in this journals
All Journal International Journal of Engineering, Science and Information Technology SAINSMAT: Journal of Applied Sciences, Mathematics, and Its Education Aptekmas : Jurnal Pengabdian Kepada Masyarakat Journal of Renewable Energy, Electrical, and Computer Engineering Chemical Engineering Journal Storage (CEJS) Makara Journal of Technology International Review of Practical Innovation, Technology and Green Energy (IRPITAGE) Jurnal Malikussaleh Mengabdi Jurnal Solusi Masyarakat (JSM) Jurnal Solusi Masyarakat Dikara
Mulyawan, Rizka
Unknown Affiliation
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Automotive Engineering 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 Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Neuroscience Nursing Physics Public Health Social Sciences Transportation Veterinary Other

Published : 30 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 30 Documents
Search

 1   2   3 
Feasibility Study of Potential Utilization of Tofu Industry Waste Into Cat Fish Feed Syarifuddin; Anshar, Khairul; Subhan; Mulyawan, Rizka
SAINSMAT: Journal of Applied Sciences, Mathematics, and Its Education Vol. 10 No. 2 (2021)
Publisher : ACEND Foundation

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35877/sainsmat673

Abstract

Cat fish is one of preferred food for most Acehnese people, particularly in Lhokseumawe regions. This is the motive of most people are interested in cultivating such fish; beside the selling price is relatively high, it also has increasing ramp of demand every year. In order to meet the increasing demand, the fish farms are in need of appropriate feed aiming for upgrading cat fish growing rate. Around Lhokseumawe region, despite of numerous tofu industries the dregs are still not well utilized. The waste of tofu industries, which is tofu dregs, functions as cat fish feed. Tofu dregs made cat fish feed has numbers of advantages, such as accelerating the fish growth until 17-18%. This is due to the coarse fiber protein contain to be 7.11%, fat 4.93% and BETN 44.50%. Beside its nutritional advantages as alternative cat fish feed raw material, tofu dregs as cat fish feed material should be examined in technical and financial aspects so that it is guaranteed to be implemented. Hence, in this research the feasibility study was conducted on technical aspects of processing solid tofu dregs to be cat fish feed by using BEP and PP analysis methods. According to Payback Period (PP) value, the business has three months and six days period of time in order to return the initial investment capital. The production rate in one months must be above 542 kg in order to avoid from being lost. With the existing production capacity (1.092 kg/month), the cat fish feed price must be above IDR 6.116/kg in order to cover all expenditure in the time period.
Thermal and Physical Properties of Patchouli Essential Oil Industry Residue as Renewable Feedstock for Bioenergy Ginting, Zainuddin; Setiawan, Adi; Mulyawan, Rizka; Armadani, Wika; Hermawan, Yuda; Shrestha, Ashish
Journal of Renewable Energy, Electrical, and Computer Engineering Vol 2, No 1 (2022): March 2022
Publisher : Institute for Research and Community Service, Universitas Malikussaleh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/jreece.v2i1.6644

Abstract

Patchouli plant is one of main agricultural commodities in Indonesia with an area of 64.67 ha. The solid waste produced from the distillation industry is around 98% of total feedstock. The aim of this research is to disclose the characteristics of solid waste biomass from patchouli essential oil industry harvested from Lhokseumawe, Indonesia. The properties of patchouli biomass before and after distillation was analyzed by using a number of techniques including proximate, bomb calorimeter, TGA-DTG, DSC and lignocellulosic analyses. Five kilograms of biomass was collected after patchouli harvesting then sorted into four categories i.e. leaves, branches and trunk. and mixture of all. Another set of biomass residue was collected after distillation process and grouped similar to those collected before distillation. All samples were then dried, ground and sieved to 50 mesh size. The analysis results showed that the highest heating value was observed from the sample of patchouli leaves collected before distillation process with a value of 15.65 MJ/kg where its volatile matter content was 81.26%. Compositional analysis of lignocellulosic suggested that 27% in pre-distilled branches. Mixture of all parts was found to contain 35% cellulose that was the highest. Lignin content with 42% value was found in after distilled trunk.
Adsorption of Cu(Ii) Ions in Aqueous Solution Onto Limonia Acidissima Shellbased Activated Carbon: Kinetic and Isotherm Studies Muslim, Abrar; Said, Syahiddin Dahlan; Hariati, Gita Suci; Karina, Siti Fajar; Djuned, Fauzi Muhammad; Mulyawan, Rizka
Makara Journal of Technology Vol. 21, No. 3
Publisher : UI Scholars Hub

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Adsorption of Cu(II) ions from aqueous solution using activated carbon prepared from Limonia acidissima fruit shell (LAFS-AC) was conducted in batch mode experiments at pH 5 (±0.15), 100 rpm and 1 atm. The effects of contact time, initial Cu(II) ions concentration, KOH concentration, and adsorption temperature on Cu(II) ions adsorption capacity were investigated. Fourier Transform Infrared Spectroscopy and Scanning Electron Microscopy analyses were performed to investigate the active site and surface morphology of the LAFS-AC, respectively. The Cu(II) ions adsorption was fitted very well (R2 = 0.94 on average) to the pseudo second-order adsorption kinetic with the adsorption capacity and rate being 25.58 mg/g and 0.07 g/mg.min, respectively at 27 oC by the LAFS AC activated using 0.5 M KOH. It was 26.88 mg/g and 0.15 g/mg.min, respectively at 60 oC. The Cu(II) ions adsorption followed the Langmuir adsorption isotherm model (LAIM) (R2 = 0.98 on average). The LAIM adsorption capacity and constant were 26.67 mg/g and 0.03 L/g, respectively at 27 oC. It increased dramatically to 0.09 L/g at 60 oC. The optimal adsorption condition obtained was the 0.5 M KOH activated LAFS-AC, initial Cu(II) concentration of 509.81 mg/L and 120-min contact time at 60 oC with the Cu(II) ions adsorption capacity of 26.95 mg/g.
Synthesis of Cellulose Stearate Ester as Wet Strength Agent for Synthesis of Bio-polybag from Oil Palm Empty Fruit Bunch Kurniawan, Eddy; Mulyawan, Rizka; Tri Agusna PA, Angga; Armadani, Wika; Ginting, Zainuddin
International Journal of Engineering, Science and Information Technology Vol 2, No 2 (2022)
Publisher : Department of Information Technology, Universitas Malikussaleh, Aceh Utara, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (752.502 KB) | DOI: 10.52088/ijesty.v2i2.227

Abstract

Biodegradable polybags are an alternative to overcome the weakness of synthetic polybags because of their degradation properties. Oil palm empty fruit bunches contain a lot of cellulose so that they can be used as a biodegradable polybag. Wet Strength serves to increase the physical strength of bio-polybags when exposed to water (in wet conditions) so that water content stability is required. In this study, Cellulose Stearate Esters were synthesized in an effort to increase the stability of the water content in bio-polybags. Cellulose Stearate Esters are synthesized through a transesterification reaction between -Cellulose isolated from Oil Palm Empty Fruit Bunches (EFB) with methyl stearate. The synthesis of cellulose stearate esters was carried out by refluxing for 2 hours using methanol solvent with various catalysts Na2CO3 5, 10, 15, 20 mg and with volume variations of methyl stearate 5, 10, 15. And the best variation was determined based on the degree of substitution test, namely with variations Na2CO3 catalyst 20 mg and volume of methyl Stearate 15 ml, amounting to 1.95. The result of the synthesis, namely cellulose stearate, was tested for functional groups by FT-IR spectroscopy and surface morphology using SEM. The formation of cellulose stearate is supported by the FT-IR spectrum in the wavenumber region of 3468.01 cm-1 indicating an OH group, 3062.96 cm-1 indicating a CH stretching group, 1695.43 cm-1 indicating a C=O group, cm-1 indicating a CH bending group, 1095.57cm-1 indicates a COC group, 609.51cm-1 indicates a (CH2)n4 group. The results of surface morphology analysis using SEM showed that the surface of cellulose stearate looked homogeneous, more regular and had denser cavities than -Cellulose
Utilization of Molasses Waste as Activated Carbon for Adsorption of Rhodamine B from Synthetic Waste Balatif, Ali Nur Muhammad Zaidin; Muhammad, Muhammad; Mulyawan, Rizka
Journal of Renewable Energy, Electrical, and Computer Engineering Vol. 4 No. 1 (2024): March 2024
Publisher : Institute for Research and Community Service (LPPM), Universitas Malikussaleh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/jreece.v4i1.14673

Abstract

The utilization of molasses waste as Rhodamine B adsorbent has been investigated by studying adsorption isotherm and adsorption kinetics. The sample used is a variation of the concentration of Rhodamine B 10, 25, and 50 mg/L for kinetics adsorption and 50 mg/L, 100 mg/L, 150 mg/L, 200 mg/L, and 250 mg/L for isotherm adsorption. Kinetic analysis adsorption being tested by pseudo-first-order and pseudo-second-order rate equation, as for the equilibrium equation being tested by Langmuir and Freundlich adsorption isotherms. Study shows that Langmuir equation model and pseudo-second-order are the most suitable to be applied. The adsorption constant is obtained of 1.1664 L/g and qmax of 221.8279 mg/g in Langmuir Equation. Whereas for pseudo second order equations obtained values of qe, exp and qe, cal which are slightly different. The qe, cal values obtained were 8.142 mg/g, 23.141 mg/g, and 53.895 mg/g for various concentrations.  K value is obtained with a range of 0.001754-0.000294 and a value of R2 with a range of 0.8249-0.995 for various concentration. Intraparticle diffusion in this study is not the only rate control measure due to the plot linear at each concentration does not cross the origin.
PEMANFAATAN LIMBAH CANGKANG KELAPA SAWIT SEBAGAI PEMBUATAN BRIKET DENGAN PEREKAT TEPUNG SINGKONG SEBAGAI BAHAN BAKAR ALTERNATIF Fitria, Lisa; Mulyawan, Rizka; Ishak, Ishak; Sulhatun, Sulhatun; Meriatna, Meriatna; Kamar, Iqbal
Chemical Engineering Journal Storage (CEJS) Vol. 2 No. 5 (2022): Chemical Engineering Journal Storage (CEJS) - Desember 2022
Publisher : LPPM Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/cejs.v2i5.9274

Abstract

Briket merupakan energi alternatif pengganti bahan bakar yang dihasilkan dari bahan-bahan organik atau biomasa yang kurang termanfaatkan. Diantara jenis limbah biomasa yang memiliki potensi besar seperti ampas tebu, serbuk kayu, kulit jagung, cangkang kelapa sawit dan sekam padi. Penelitian ini bertujuan untuk memanfaatkan limbah cangkang kelapa sawit  yang biasanya banyak terbuang diolah menjadi briket yang bernilai ekonomis dengan parameter pengujian meliputi kadar air, kadar abu dan nilai kalor. Pembuatan briket ini berbahan baku dari cangkang kelapa sawit yang dimulai dengan proses pengarangan kemudian dihaluskan dan disaring dengan ukuran variasi yang ditentukan, kemudian dicampur dengan perekat variasi yang ditentukan dan dicetak lalu dikeringkan dengan sinar matahari selama 1 hari, lalu dikeringkan lagi menggunakan oven selama 1 jam. Pada penelitian ini divariasikan ukuran partikel yaitu 20 mesh, 50 mesh, 80 mesh dan 100 mesh untuk meningkatkan nilai kalor. Adapun perekat yang digunakan adalah tepung singkong dengan variasi perekat masing 5%, 10%, 15%, dan 20%. Hasil penelitian menunjukan bahwa briket sudah memenuhi standar mutu SNI 1/6235/2000 briket arang. Hasil terbaik diperoleh pada variasi 15% perekat tepung singkon dan ukuran partikel 100 mesh dan 80 mesh dengan kadar air masing-masing 4,6006% dan 4,5723%, kadar abu masing-masing sebesar 6,1161% dan 6,5593%, lalu nilai kalor 6.231,25 kal/gr, dan 6.119,47 kal/gr. Dengan melihat hasil penelitian ini bahwa cangkang kelapa sawit dari limbah pabrik kelapa sawit dapat dimanfaatkan menjadi salah satu bahan baku alternatif dalam pembuatan briket.
PEMBUATAN SABUN BATANG ORGANIK (OPAQUE) dari TEH DAUN KOPI GAYO ROBUSTA Hesni, Yuli; Ginting, Zainuddin; Sylvia, Novi; Masrullita, Masrullita; Mulyawan, Rizka
Chemical Engineering Journal Storage (CEJS) Vol. 2 No. 3 (2022): Chemical Engineering Journal Storage (CEJS) - Agustus 2022
Publisher : LPPM Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/cejs.v2i3.6806

Abstract

Daun kopi gayo robusta ( Coffea Canophora Leave) Merupakan salah satu tanaman alam yang dapat digunakan menjadi teh herbal, teh daun kopi telah di kenal masyarakat indonesiai sebagai minuman herbal yang kaya antioksidan . Namun pada penelitian ini daun kopi robusta di manfaatkan sebagai bahan baku dalam pembuatan sabun batang organik. Sabun batang organik disebut dengan sabun ramah lingkungan karena menggunakan bahan yang alami dan mudah terurai di lingkungan,sehingga dapat mengurangi pencemaran lingkungan. Pemanfaatan limbah daun kopi kini di olah menjadi teh daun kopi di mana teh daun kopi sangat bermanfaat dalam pembuatan sabun batang organik sebagai antiseptik karena teh daun kopi mengandung alkaloida,saponin,flavanoid dan polifenol. Maka dari salah satu upaya mengurangi limbah daun kopi gayo robusta dengan memanfaatkan daun teh menjadi bahan baku dalam pembuatan sabun batang oranik. Adapun standar kualitas sabun telah di atur dalam SNI 3532-2016 yaitu dengan kadar air maksimal kurag dari 14%, kadar alkali bebas maksimal kurang dari 0,1%. Pada setiap sampel telah memenuhu kriteria SNI 3532-2016, namun dalam nilai pH terjadi perubahan peningkatan dalam penambahan teh daun kopi namun tidak berdampak pada waktu mencapai reaksi. Pada uji organoleptik panelis lebih menyukai Run 2 dengan massa teh daaun kopi 4 gr dan dengan waktu mencapai reaksi 2 menit.   
PEMANFAATAN KULIT SALAK SEBAGAI KARBON AKTIF UNTUK ADSORPSI RHODAMINE B Gultom, Togu Sahat Martua; Muhammad, Muhammad; Ginting, Zainuddin; Mulyawan, Rizka; Azhari, Azhari
Chemical Engineering Journal Storage (CEJS) Vol. 4 No. 4 (2024): Chemical Engineering Journal Storage (CEJS) - Agustus 2024
Publisher : LPPM Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/cejs.v4i4.17534

Abstract

Telah diteliti pemanfaatan limbah kulit salak sebagai adsorben Rhodamine B dengan kajian kesetimbangan adsorpsi dan kinetika adsorpsi. Penelitian ini bertujuan untuk mengkaji kesetimbangan serta menganalisa model kinetika adsorpsi. Sampel yang digunakan adalah variasi konsentrasi Rhodamine B 10 ppm, 25 ppm, dan 50 ppm. Analisa kinetika adsorpsi diuji dengan menggunakan dua model persamaan laju adsorpsi yaitu persamaan laju orde satu semu dan persamaan laju orde dua semu. Sedangkan untuk persamaan kesetimbangan yang diuji adalah persamaan adsorpsi isoterm Langmuir dan Freundlich. Penelitian ini sudah pernah dilakukan sebelumnya, yang menjadi pembeda dari penelitian sebelumnya adalah konsentrasi aktivator dan waktu pengeringan pada adsorben. Hasil kajian menunjukkan bahwa model persamaan Langmuir dan orde dua semu adalah yang paling sesuai diaplikasikan untuk adsorpsi Rhodamine B terhadap karbon aktif dari kulit salak. Dari persamaan langmuir diperoleh konstanta adsorpsi sebesar 10,35808 L/mg dan qmaks sebesar 0,258759 mg/g. Sedangkan untuk persamaan orde dua semu didapatkan nilai qe,exp dan qe,cal yang tidak jauh berbeda. Didapatkan nilai qe,cal sebesar 0,1476 mg/g, 0,2252 mg/g, dan 0,3117 mg/g untuk variasi konsentrasi 10 ppm, 25 ppm, dan 50 ppm. Didapatkan nilai k dengan rentang 1,2252-0,2851 dan nilai R2 dengan rentang 0,9701- 0,9999 untuk variasi konsentrasi 10 ppm, 25 ppm, dan 50 ppm. Karena model isoterm Langmuir mampu menginterpretasikan proses adsorpsi Rhodamine B dengan baik, maka sistem adsorpsi Rhodamine B menggunakan karbon aktif dari molase dari penelitian ini adalah homogen dan monolayer. Kajian kinetika menunjukkan bahwa model persamaan orde dua semu yang paling sesuai diaplikasikan. Dari model orde dua semu, laju proses adsorpsi Rhodamine B dikendalikan oleh adsorpsi kimia.
ADSORBEN KARBON AKTIF DARI KULIT TANDUK KOPI (ENDOCARP) DIAPLIKASIKAN PADA ZAT WARNA METHYLENE BLUE Purna Irawan, Faisal Dwi; Muhammad, Muhammad; Mulyawan, Rizka; Nurlaila, Rizka; Bahri, Syamsul
Chemical Engineering Journal Storage (CEJS) Vol. 5 No. 3 (2025): Chemical Engineering Journal Storage (CEJS)-June 2025
Publisher : LPPM Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/cejs.v5i3.17297

Abstract

Methylene blue adalah zat pewarna yang sering digunakan pada industri tekstil. Karena sangat stabil, pewarna sulit rusak secara alami dan berbahaya bagi lingkungan jika digunakan dalam konsentrasi tinggi. Metode yang terbaik cara untuk mengatasi masalah pencemaran zat warna methylene blue adalah dengan menggunakan karbon aktif untuk adsorbsi. Salah satu jenis biomassa dapat digunakan membuat adsorben karbon aktif ialah limbah kulit (endocarp) tanduk kopi. Penelitian ini sebelumnya sudah pernah dilakukan dengan menggunakan kulit singkong dengan activator HPO3. Penelitian bertujuan mengetahui pengaruh lama waktu kontak dan bahan pengaktifan terhadap terhadap penyisihan zat warna Methylene blue. Proses pembuatan karbon aktif menggunakan pada suhu karbonisasi 500oC selama 1 jam. Kemudian diaktivasi  menggunakan NaOH 2, 3, 4 M selama 24 jam. Kemudian diuji kadar air, kadar abu, dan Volatile matter, fixed carbon dan uji adsorbsi karbon aktif terhadap Methylene blue, karakterisasi karbon aktif menggunakan Scanning Electron Microscope - Energy Dispersive X-ray Spectroscopy (SEM-EDS). Hasil penelitian menunjukkan kadar air 2.539%, kadar abu 5.510%, Volatile matter 22.404%, Fixed carbon 69.546%, kapasitas penyerapan dan efesiensi penyerapan pada konsentrasi Methylene blue 15 ppm adalah 2,9090 mg/g dan  98,9063% serta kapasitas penyerapan 5,856 mg/g dan efesiensi penyerapan pada konsentrasi Methylene blue 30 ppm adalah 5,8968 mg/g dan 99,2630%.
OPTIMASI KONDISI PROSES TRANSESTERFIKASI IN-SITU DARI BIJI MAHONI (SWIETENIA MAHAGONI) MENGGUNAKAN METODE RESPONSE SURFACE METHODOLOGY Pradesti, Salsa; Meriatna, Meriatna; Masrullita, Masrullita; Mulyawan, Rizka; Bahri, Syamsul; Zulmiardi, Zulmiardi
Chemical Engineering Journal Storage (CEJS) Vol. 5 No. 1 (2025): Chemical Engineering Journal Storage (CEJS)-April 2025
Publisher : LPPM Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/cejs.v5i1.19143

Abstract

Bahan bakar pengganti diesel yang ramah lingkungan dan dapat diperbaharuhi biasanya terbuat dari minyak tumbuhan dan lemak hewan. Minyak tumbuhan mahoni mengandung 52,5%, yang merupakan minyak non pangan yang mengandung trigliserida dan dapat digunakan untuk membuat biodiesel. Transesterifikasi in situ adalah inovasi dalam produksi biodiesel yang menyederhanakan proses konvensional dengan mengombinasikan proses ekstraksi dan tranesterifikasi menjadi satu tahap. Penelitian ini sebelumnya sudah pernah dilakukan, yang belum pernah dilakukan adalah pengolahan biodiesel dari biji buah mahoni dengan menggunakan metode response surface methodology (RSM). Tujuan penelitian ini adalah untuk mempelajari sifat biodiesel yang dibuat dari biji mahoni melalui proses transesterifikasi in-situ. Dengan menggunakan RSM (Response Surface Methodology), kami dapat menentukan waktu reaksi dan volume metanol yang ideal untuk transesterifikasi in-situ biodiesel dari biji mahoni. Variabel bebas yang dipelajari adalah variasi volume pelarut (800,900,1000 ml) dan waktu reaksi transesterifikasi in situ (60,120,180 menit) dan diamati hasil optimasinya terhadap yield, densitas, bilangan asam dan viskositas. Yield paling optimal didapat pada variasi volume pelarut dan waktu reaksi 1000 ml dan 180 menit yaitu 28,492%. Hasil GC-MS biodiesel minyak biji mahoni yaitu asam linoleat sebesar 26,76% dan 19,96%, asam oleat 19,31% dan asam stearat sebesar 15,86%.
Co-Authors Abrar Muslim Adi Setiawan Afra, Khalida Agam Muarif Ahmad Fikri Alfriyanto, Mochammad Bimo Amalia, Nabila Amri Amri Armadani, Wika Ashari, Muhammad Rayhan Aulia Rahman Azhari Azhari Azhari Azhari Balatif, Ali Nur Muhammad Zaidin Cahyati, Annisa Ayu Chairinnisa, Chairinnisa Cut Khairunnisa Dedi Fariadi Djuned, Fauzi Muhammad Eddy Kurniawan fajarani, auliya Fibarzi, Wiza Ulfa Fitria, Lisa Furqan, Muhammad Alif Gultom, Togu Sahat Martua Hanif Hanif Hariati, Gita Suci Hermawan, Yuda Hesni, Yuli Ibrahim, Ishak Ilhami, Gita Ayu Ishak Ishak Ishak, I Jalaluddin Jalaluddin Jufri Kamar, Iqbal Karina, Siti Fajar Khairul Anshar Kurniawati Kurniawati Leni Maulinda, Leni Lukman Hakim Mainisa, Mainisa Masrullita, Masrullita Meriatna Meriatna Muhammad Muhammad Muhammad Muhammad Muhammad Muliana, Erna Nasrul ZA, Nasrul Nosari, Yulia Novi Sylvia Nur Aisyah Nurdiah, Ika Nurlaila, Rizka Pradesti, Salsa Purna Irawan, Faisal Dwi Putri, Anggieta Putri Razi, Ar Rini Meiyanti Rizki, Dini Rozanna Dewi Shrestha, Ashish Sri Wilujeng Subhan Sulhatun Sulhatun Suryati Suryati Syahiddin Dahlan Said Syamsul Bahri Syarifuddin Tri Agusna PA, Angga Wibowo, Rofiq Imam Yulisda, Desvina Yusri, Wilda Azizah Zainuddin Ginting Zufina, Rezki Zulmiardi, Zulmiardi Zulnazri, Z