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All Journal Reaktor Jurnal Ilmu Lingkungan Jurnal Sains dan Teknologi Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Majalah Kulit, Karet, dan Plastik JOURNAL OF EARTH ENERGY ENGINEERING Journal Of Chemical Process Engineering (JCPE) Civic-Culture : Jurnal Ilmu Pendidikan PKN dan Sosial Budaya Chemistry Indonesian Journal of Chemical Research Jurnal Kesehatan Indonesia Jurnal Ilmiah Akuntansi Peradaban Unri Conference Series: Community Engagement Jurnal Teknik Kimia Indonesia Journal of Bioprocess Chemical and Environmental Engineering Science Warta Perkaretan Prosiding Konferensi Nasional PKM-CSR Jurnal Teknologi Kimia Unimal Bhakti Nagori (Jurnal Pengabdian kepada Masyarakat) JURNAL SIPISSANGNGI: Jurnal Pengabdian Kepada Masyarakat LAVOISIER: Chemistry Education Journal Jurnal Sains dan Ilmu Terapan AGROTEKBIS: Jurnal Ilmu Pertanian Journal Of Chemical Process Engineering LAVOISIER: Chemistry Education Journal JURNAL REKAYASA KIMIA & LINGKUNGAN Proceeding International Conference on Education
Bahruddin Bahruddin
Universitas Riau
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Kesetimbangan Cair-Cair Sistem Polipropilena Dan Maleated Natural Rubber Martani, Russita; Bahruddin, Bahruddin; Amri, Amun
Journal of Chemical Process Engineering Vol. 4 No. 2 (2019): Journal of Chemical Process Engineering
Publisher : Fakultas Teknologi Industri - Universitas Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33536/jcpe.v4i2.844

Abstract

Pada campuran polipropilena (PP)-maleated natural rubber (MNR), MNR berfungsi sebagai compatibilizer yang melakukan modifikasi terhadap permukaan matrik PP untuk memudahkan masuknya filler sehingga dihasilkan campuran yang lebih kompatibel. Tujuan dari penelitian ini adalah untuk menentukan kemampuan campur maleated natural rubber (MNR) dalam polipropilena (PP) pada berbagai variasi suhu. Penelitian diawali dengan prediksi kesetimbangan cair-cair sistem PP-MNR dengan menggunakan metode UNIFAC dilanjutkan dengan validasi model kesetimbangan. Validasi model kesetimbangan cair-cair sistem PP-MNR diawali dengan mencampurkan karet alam dan maleic anhydride (MAH) dalam internal mixer untuk penyiapan MNR. MNR yang telah disiapkan lalu dicampurkan dengan PP dalam internal mixer dengan kadar MNR dan temperatur proses divariasi berdasarkan prediksi kesetimbangan cair-cair UNIFAC. Kemudian campuran PP-MNR dianalisa dengan uji difference scanning calorimetry (DSC). Hasil uji DSC digunakan untuk melakukan validasi hasil perhitungan kesetimbangan cair-cair UNIFAC. Hasil perhitungan UNIFAC merupakan kesetimbangan cair-cair sistem PP-MNR berupa kadar MNR dan temperatur proses pencampuran. Pada campuran ini MNR berfungsi sebagai compatibilizer. Kadar MNR pada campuran adalah 4,4%–11,16% dan temperatur proses adalah 170oC–210oC. Semakin besar kadar MNR dalam campuran, semakin rendah suhu proses pencampuran. Hasil validasi uji DSC sesuai dengan prediksi kesetimbangan cair-cair sistem PP-MNR menggunakan metode UNIFAC
PENGARUH NISBAH STYRENE ACRYLIC DAN LATEKS DALAM BINDER TERHADAP KARAKTERISTIK CAT WATERPROOF nadimisia, tiara dwisca; Afrilianti, Azyarah; Bahruddin, Bahruddin; Wiranata, Arya; Zahrina, Ida; herman, syamsu; jahrizal, jahrizal
Jurnal Teknologi Kimia Unimal Vol. 13 No. 2 (2024): Jurnal Teknologi Kimia Unimal - Nopember 2024
Publisher : Chemical Engineering Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/jtku.v13i2.19500

Abstract

Penelitian ini mengeksplorasi potensi penggunaan lateks karet alam dan polimer styrene acrylic sebagai bahan baku pembuatan cat waterproof ramah lingkungan. Tujuan penelitian adalah mengkaji pengaruh nisbah campuran lateks karet alam dan styrene acrylic terhadap karakteristik cat waterproof. Pengaruh yang ingin dikaji meliputi daya tutup, daya cuci, waktu kering sentuh, total kandungan padatan, dan ketahanan air. Lateks karet alam dengan Dry Rubber Content (DRC) 58% digunakan sebagai bahan dasar, sementara binder diproduksi menggunakan metode blending dengan polimer styrene acrylic dan sodium lauryl sulfate (SLS) sebagai bahan tambahan. Variasi nisbah styrene acrylic dan lateks karet alam yaitu (0:100);(10:90);(30:70);(50:50);dan (100:0) (%wt).  Binder tersebut dicampur ke dalam cat dengan kadar 70%. Hasil penelitian menunjukkan bahwa semakin besar nisbah styrene dalam binder maka nilai washability dan total padatan semakin meningkat sehingga waktu kering sentuh semakin cepat dan cat yang dihasilkan akan lebih tahan lama terhadap rembesan air. Semua sampel uji tersebut memperlihatkan karakteristik cat yang memenuhi standar, baik SNI maupun ASTM. Karakteristik tersebut meliputi washability resistance >1200 siklus, total padatan >45%, waktu kering sentuh <60 menit, dan ketahanan terhadap air berkisar 8-10 hari. 
Enhancing Student’s Pronunciation Capability Using Microsoft Speech Recognition Engine Bahruddin
Proceeding International Conference on Education Volume 01, Agustus Tahun 2023: International Conference on Education
Publisher : Faculty of Tarbiyah, Institut Agama Islam Negeri (IAIN) Kediri, Indonesia

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

Abstract

Pronunciation is crucial for language learners as it directly influences their communication skills and overall language proficiency. This paper explores the potential of leveraging Microsoft's Speech Recognition Engine (MSRE) as a tool to enhance students' pronunciation capabilities. The study employs a mixed-methods approach, combining quantitative assessments and qualitative observations to evaluate the impact of using MSRE in a language learning environment. The methodology involves pre-test and post-test, where students' pronunciation proficiency is measured before and after incorporating MSRE. The real-time feedback provided by the speech-recognition engine helps learners identify and rectify pronunciation errors, promoting self-correction and self-directed learning.  This study contributes to the growing body of research on technology-enhanced language learning, specifically in the context of pronunciation improvement. The findings highlight the potential of MSRE as a valuable addition to language classrooms, emphasizing its role in fostering autonomous language learning and empowering students to take ownership of their language development.
Kajian Efisiensi Penyisihan BOD pada Start-Up Bioreaktor Hibrid Anaerob Menggunakan Substrat Limbah Cair Pabrik Sagu Handayani, K.H Sri; Ahmad, Adrianto; Bahruddin
Journal of Bioprocess, Chemical and Environmental Engineering Science Vol 6 No 1 (2025): Journal of Bioprocess, Chemical, and Environmental Engineering
Publisher : Department of Chemical Engineering, Faculty of Engineering, UNRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jbchees.6.1.51-61

Abstract

The Meranti Islands Regency is renowned as one of the largest sago flour producers in Indonesia, with a total production of 202,186 tons of sago per year and wastewater production reaching 40,000 liters. The microorganism Enterobacter aerogenes is a facultative anaerobic hydrogen-producing bacterium through dark fermentation of sago liquid waste. This study aims to determine study on bod removal efficiency during the start-up phase of a hybrid anaerobic bioreactor, identify the biological oxygen demand (BOD) loading rate during start-up, and evaluate the BOD removal efficiency in the start-up phase. The sago wastewater was characterized for its BOD, pH, and VSS content before treatment. The first phase involved preparing cow dung extract, which serves as a medium. The second phase focused on biomass seeding and acclimatization using a sago medium. The acclimatization process utilized a daily discharge-and-fill method of 200 mL (total acclimatization volume of 12.5 L). Samples from the acclimatization process were analyzed for potential of hydrogen (pH) and volatile suspended solid (VSS) values. If the acclimatized VSS values were below 10%, the third phase (start-up phase) was initiated. The start-up phase was operated with a hydraulic retention time (HRT) of 48 hours. Output samples were analyzed for pH, VSS, and %BOD values until a consistent %BOD value below 10% was achieved. The final stage involved data collection for analyzing the kinetics of microorganism cell growth. The specific growth kinetics value (µ) of the mixed-culture microorganism cells during the start-up phase calculated with a result of μ=0.00617. The highest BOD loading rate during the start-up phase occurred at the 1st hydraulic retention time (HRT), reaching 6.54 kg/m³/day, accompanied by the lowest BOD removal efficiency of 18.76%. In contrast, the lowest BOD loading rate was recorded at the 11th HRT, at 0.704 kg/m³/day, achieving the highest BOD removal efficiency of 91.26%.
Optimization of the Condition of Palm Frond Torrefaction Process by Utilizing Liquid Torrefaction Product as Pre-treatment for Improve Product Quality Susanty, Wenny; Helwani, Zuchra; Bahruddin, Bahruddin
Jurnal Rekayasa Kimia & Lingkungan Vol 14, No 1 (2019): Jurnal Rekayasa Kimia & Lingkungan (June, 2019)
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23955/rkl.v14i1.13443

Abstract

AbstractPalm frond can be converted to solid fuel using torrefaction process as an alternative energy source. Torrefaction is the process to convert the biomass into solid fuel at a temperature range of 200-300oC in inert condition. Calorific value is the most important response in solid fuel. The aim of this research is to obtain the optimum condition of palm fronds torrefaction statistically was used Response Surface Methodology. Torrefaction of palm frond on fixed bed a horizontal reactor which is equipped with horizontal condenser and condensate trap with the condition process such as the temperature (225-275oC), time (15-45 min), and N2 flow rate (50-150 ml/min). This research methodology consist of drying, washing with liquid product of torrefaction, torrefaction, and analysis. The response variables were mass yield, calorific value, energy yield, and proximate. Design Expert Trial Version 7.0 Software was used for optimization of condition process with desirability. The optimized condition process were temperature of 275oC, time of 44 minute, and N2 flow rate of 50 ml/min.Keywords: solid fuel, design expert, optimization, palm frond, torrefaction
Termodinamika Campuran Polipropilen/Karet Alam yang Ditambahkan Kompatibilizer Maleated Polypropylene Bahruddin, Bahruddin; Irdoni, Irdoni; Muhammad, Muhammad
Jurnal Rekayasa Kimia & Lingkungan Vol 10, No 1 (2014): Jurnal Rekayasa Kimia & Lingkungan
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23955/rkl.v10i1.2169

Abstract

Kajian terhadap aspek termodinamika suatu sistem campuran polimer-polimer diperlukan untuk mendapatkan informasi mengenai kemampuan pencampuran maksimal dan pemisahan fasa dari sistem campuran tersebut. Penelitian ini bertujuan untuk memperkirakan kemampuan pencampuran sistem karet alam (natural rubber, NR) dan polipropilen (PP) yang ditambahkan kompatibilizer Maleated Polypropylene (MAPP), dimana fasa NR tervulkanisasi dinamik dalam matrik PP dengan cross-link agent sulfur. Estimasi kemampuan pencampuran didasarkan pada energi bebas pencampuran yang dihitung dengan persamaan Flory-Huggins. Entalpi pencampuran dan volume molar masing-masing dihitung dengan persamaan van Krevelen dan metode Group Contribution Volume (GCVol). Parameter kelarutan juga dihitung menggunakan metode van Krevelen. Energi bebas pencampuran dihitung pada komposisi NR antara 0 sampai dengan 100% dan suhu 30oC. Proses vulkanisasi fasa NR dianggap menghasilkan jumlah molekul yang berikatan silang sebanyak 1113 dan terjadi secara monosulfidik. Komposisi MAPP divariasikan antara 0 sampai 10% massa, sedangkan jumlah gugus anhydrate (MA) dalam molekul MAPP berkisar antara 1 sampai 5% mol. Hasil perhitungan menunjukkan bahwa penambahan MAPP pada sistem campuran NR/PP dengan fasa NR tervulkanisasi dinamik hanya dapat menurunkan nilai energi bebas pencampuran, namun tidak mengubah sifat ketidakmampuan campurnya. Kadar MA dalam MAPP relatif tidak mempengaruhi kemampuan pencampuran sistem campuran tersebut.
PENGARUH FULL ACRYLIC DAN STYRENE ACRYLIC TERHADAP KINERJA LATEKS KARET ALAM SEBAGAI BINDER PADA APLIKASI CAT EMULSI Wiranata, Arya; Sugesti, Heni; Syahwardini, Trisuciati; Pakpahan, Cindy; Rosmawati, Putri; Nurhidayah, Nurhidayah; Bahruddin, Bahruddin
Warta Perkaretan Vol. 44 No. 2 (2025): Volume 44, Nomor 2, Tahun 2025
Publisher : Pusat Penelitian Karet - PT. Riset Perkebunan Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/ppk.wp.v44i2.1223

Abstract

Permintaan cat dalam industri konstruksi terus meningkat, terutama cat emulsi berbasis air yang bergantung pada kualitas bahan pengikat (binder) sebagai komponen utama. Indonesia masih mengandalkan impor binder sintetis, sehingga diperlukan alternatif lokal yang ramah lingkungan. Lateks karet alam merupakan kandidat potensial, namun memiliki kelemahan dalam ketahanan cuaca dan waktu pengeringan. Penelitian ini mengembangkan binder berbasis lateks karet alam yang dimodifikasi dengan resin akrilik (full acrylic dan styrene acrylic) untuk meningkatkan daya rekat, ketahanan abrasi, dan stabilitas cuaca. Modifikasi dilakukan melalui proses pencangkokan menggunakan benzoyl peroxide, SLS, sodium sulfit, dan polipropilen glikol pada suhu 85°C selama 60 menit. Binder hasil modifikasi kemudian dicampur ke dalam cat emulsi dan diuji menggunakan FT-IR spectroscopy, uji ketahanan gosok (scrub) dan abrasi (abrasion) (mengacu pada ASTM D2486 method A), serta pengukuran sudut kontak (contact angle). Hasil menunjukkan peningkatan signifikan dalam performa cat, terutama pada sampel NRL-FA(70:30) dengan kadar binder 15%, yang mampu bertahan hingga 5.500 siklus dan memiliki sudut kontak 87°. Temuan ini menunjukkan bahwa lateks karet alam termodifikasi akrilik berpotensi menjadi alternatif binder berkinerja tinggi untuk aplikasi cat emulsi interior dan eksterior.
Menilai Pemulihan Ekologis: Analisis Ekonomi Lingkungan terhadap Remediasi Tanah Terkontaminasi Minyak di Hutan Hujan Tropis Lubis, Abdillah; Bahruddin; Suwondo; Efriyeldi
Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Vol 15 No 6 (2025): Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (JPSL)
Publisher : Pusat Penelitian Lingkungan Hidup, IPB (PPLH-IPB) dan Program Studi Pengelolaan Sumberdaya Alam dan Lingkungan, IPB (PS. PSL, SPs. IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jpsl.15.6.1073

Abstract

The hydrocarbon contamination affects approximately 5.9 ha of soil in Sultan Syarif Hasyim Grand Forest Park (Tahura SSH), a tropical rainforest in Riau Province, Indonesia. This study aims to determine the costs required to rehabilitate petroleum-contaminated soil and evaluate the economic significance of ecological restoration in a 5.9 ha area designated in Tahura SSH. This study provides a novel economic framework for assessing ecological damage and guiding recovery in a hydrocarbon-impacted area, integrating the Replacement Cost Method (RCM) through restoration cost calculations and the Resource Equivalence Analysis (REA) to assess and compensate for environmental damage-related losses. The study results show that the three main remediation technologies selected, bioventing, bioaugmentation & biostimulation, and ex-situ landfarming, were used to remediate oil-contaminated soil in Tahura SSH. The highest remediation costs are exsitu landfarming, followed by bioaugmentation and biostimulation, and then bioventing. The ex-situ land farming method incurred the highest remediation costs. Nevertheless, it causes ecological harm in the SSH Tahura Area. REA determined that the area required to replace oil-contaminated land should be twice the baseline from 5.9 ha to 12.8 ha. Furthermore, the compensation paid by REA for environmental damage exceeded the initial assessment by 116.1% compared to using the Replacement Cost Method (Bioaugmentation & Biostimulation, Bioventing, and Ex-Situ Landfarming). This study offers stakeholders guidance on determining a fair environmental value for oil-contaminated soil. Future studies 
Evaluation Of The Performance Of Fatty Acid Methyl Ester (Fame) As An Alternative Solvent In Alkyd Resin-Based Paints Arya Wiranata; Bahruddin Bahruddin; Zuchra Helwani; Heni Sugesti; Yogi Chandra; Hasrul Hasrul; Trisuciati Syahwardini; Ni putu Vidya Primarista
LAVOISIER: Chemistry Education Journal Vol 5, No 1 (2026)
Publisher : UIN Syekh Ali Hasan Ahmad Addary Padangsidimpuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24952/lavoisier.v5i1.20037

Abstract

The use of conventional solvents in the oil paint industry often leads to volatile organic compound (VOC) emissions and toxicity, so this study aims to evaluate the potential of Fatty Acid Methyl Ester (FAME) as an environmentally friendly alternative solvent. FAME is synthesised from vegetable oil through a transesterification reaction, then formulated into alkyd resin-based paints with varying binder content (40%, 50%, and 60%) to be compared with acetone solvent. The paint performance evaluation includes tests on drying time, gloss level, hiding power, and Whiteness and Yellowness Index. The results show that FAME-based paints have a much higher gloss level (10–26 GU) than acetone (3–6 GU) because their slower evaporation rate provides optimal levelling time, though this results in much longer drying time, namely 780–819 minutes. In addition, FAME has been proven to produce better covering power and a lower Yellowness Index (1.39–4.15) than acetone (4.09–5.74). This superiority is influenced by the nature of FAME, which minimises damage to the polymer binder and uniformly disperses pigments, preventing agglomeration. Overall, FAME has great potential as a sustainable paint solvent that can improve optical and physical properties, although its formulation still requires optimisation to accelerate drying.
PENINGKATAN KUALITAS PUPUK ORGANIK CAIR DENGAN PROSES FERMENTASI ANAEROBIK LIMBAH PETERNAKAN SAPI UNTUK PENINGKATAN INCOME MASYARAKAT DI DESA BATUBELAH KABUPATEN KAMPAR PROPINSI RIAU Adrianto Ahmad; Sri Rezeki Muria; Bahruddin Bahruddin; Lita Darmayanti; Khairat Khairat; Sri Helianty
JURNAL SIPISSANGNGI: Jurnal Pengabdian Kepada Masyarakat Vol 5, No 2 (2025): Sipissangngi Volume 5, Nomor 2, Juni 2025
Publisher : Lembaga Penelitan dan Pengabdian Masyarakat, Universitas Al Asyariah Mandar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35329/jp.v5i2.5921

Abstract

Pengabdian tahun 2024 ini merupakan kelanjutan dari pengabdian tahun 2022 dan 2023 dengan menggunakan Bioreaktor anaerobik yang telah dibangun sebanyak 5 unit di Desa Batubelah Kabupaten Kampar dengan kapasitas 1500 L yang dioperasikan secara kontiniu. Luaran kegiatan ini telah didapatkan Hak Paten Pembangkit Biogas dengan No. IDP000048383 dan Hak Cipta Buku Teknologi Tepat Guna No. C00201700259 dan telah berhasil membentuk kelompok peternak sapi di Desa Batubelah Kabupaten Kampar yang bertujuan untuk peningkatan pemanfaatan cairan keluaran dari Bioreaktor anaerobik sebagai pupuk organik cair. Hasil pengujian menjadi dasar pertimbangan untuk pengembangan pupuk organik cair pada pengabdian selanjutnya sebagai Program Peningkatan kualitas Pupuk organik Cair berasal dari Proses Fermentasi Anaerobik. Oleh karena itu, sangat penting dikembangkan pada desa-desa yang ada di Indonesia terutama pada Desa Batubelah Kabupaten Kampar Propinsi Riau berupa tindakan nyata dalam bentuk Kegiatan Pengabdian Fakultas Teknik Universitas Riau. Hasil pengabdian menunjukkan bahwa peningkatan kualitas pupuk organik cair dapat dilakukan dengan mengoptimalkan pengoperasian tangki bioreaktor anaerobik terutama pada laju alir umpan yang stabil setiap hari sebesar 10 % dari volume total bioreaktor anaerobik sehingga diperoleh jumlah produksi pupuk organik cair yang konstan setiap hari secara kontiniu sehingga komposisi Nitrogen, Fospor dan Kalium dalam pupuk organik cair yang diproduksi mempunyai kualitas yang stabil dan prima. Hasil pengujian menunjukkan bahwa kandungan Nitrogen sebesar 174,7 mg/L, Fospor sebesar 0,04 mg/L dan Kalium kecil dari 0,03 mg/L. Potensi pupuk organik cair yang berasal dari pemanfaatan limbah peternakan sapi yang diproses secara fermentasi anaerobik sangat menjanjikan untuk dikembangkan di pedesaan baik sebagai pupuk tanaman maupun pupuk di perkebunan. Cairan fermentasi anaerobik mengandung unsur karbon, nitrogen dan Fospor. Cairan fermentasi anaerobik tersebut dapat digunakan sebagai pengganti pupuk anorganik.
Co-Authors Ade Putra Ade Rahayu Putri Adhy Prayitno Adrianto Ahmad Adrianto Ahmad Adrianto Ahmad Adrianto Ahmad Adrianto Ahmad Adrianto Ahmad Adrianto Ahmad Ady Maulana Afrianti, Dwi Afrila Afrila Afrilianti, Azyarah Afrilla, Nurul Ahmad Fadli Ahmad Fadli Ahmad Riadi S Hasibuan Aidil Akbar Akbar, Anif Aulia Alfian Malik Almasdi Syahza Alumni STIKES Husada Borneo Ambtenarie Jessica Sihombing, Ambtenarie Jessica Aminuyati Amir Hamzah Amrizal Amrizal &#039; Amun Amri Andreas Sahat Parsaulian Andri Mulia Angelina Angelina Anugerah Rifaldi Aras Mulyadi Aris Aprianto Cahyono Artha, Ulfa Dwi Arya Wiranata Arya Wiranata Arya Wiranata Bramansyah Riswanda Briliantina Rossa Cindy Oktaviani Damayanti, Elok David Andrio Deliana, Putri DESI PURNAMA SARI Dewi Maya Sari Dian Anggraini Purba Dian Eka Indriani Djaimi Bakce Donny Kurniawan Dwifirman, Widya Edi Saputra Efriyeldi, Efriyeldi Ekawati, Lestari Endro Siswoko Eri Malindo Fachry Abda El Rahman Fadhila Nursyifa Fadli, A Fauzi, Subehan Firdaus Septiawan Fitra Annisa Gede Wibowo Gunawan Gunawan Hamsar Hamsar Handayani, K.H Sri Hara Novarisa Nanda Hasrul Hasrul Hendri, Zwilla Oktoriana Heni Sugesti Herlili Peronika Herry Novriansyah Hotnida Butar Butar HS, Irdoni. Ida Zahrina Idral Amri Idral Idral Irdoni HS Irdoni Irdoni Irdoni Irdoni Irdoni Irdoni Irdoni Irdoni Isra, Muhammad Ivan Fadhillah Ivan Fadhillah Jabosar Ronggur Hamonangan Panjaitan Jahrizal Khairat Khairat, Khairat Khairat, Khairat KRISTINA WIJAYA Liendra Juniarti Lita Darmayanti Lubis, Abdillah Lubis, Apriadi Luci Octaria Lusiana Sri Wahyuni M. Iwan Fermi Maradona Maradona Mariatul Qiftiah Melda Helena S Melly Anggraeni Mery Christina Meysara Meysara MS, Frasucia Aquaviva Muchlis Ade Putra Mudinillah, Adam Muhammad Anshar Muhammad Muhammad Muhammad Muhammad Muhammad Nasri Katman Muhammad Nur Muhammad Reza Muhammad Rivai Nadimisia, Tiara Dwisca Ni putu Vidya Primarista Nirwana Nirwana Nonot Suwarno Nopi Andri Musfa, Nopi Andri Novriyani, Vivi Nurazizah Nurazizah, Nurazizah Nurhidayah Nurhidayah Nurul Aini Thaibil Fadhly ojsadmin Oktaviani, Cindy Pakpahan, Cindy Peji Nopeles Puskesmas Guntung Payung R Firmansyah Rani Yuliantari Razita Hariani Rina Gunarti Rizky Sandy Harahap Robby Kumar Robby Kumar Romfis, Dio Rosmawati, Putri Roy Marthin Panjaitan Rozanna Sri Irianty RS Khusus Bedah Siaga Banjarmasin Russita Martani Russita Martani Septian, Septian Septiana Veronika S Septiana Veronika s, Septiana Veronika Shaleh, Idries Hamidi Siti Sakinah Sonny Wijaya Sri Helianty Sri Helianty Sri Rezeki Muria Sri Rezeki Muria STIKES Husada Borneo Sudirman Sudirman Sugesti, Heni Sumarno Sumarno Sunardjo SUSANTO, RENO Susanty, Wenny Suwondo Suwondo Syahwardini, Trisuciati Syamsu Herman Syarfi Daud Syarfi, Syarfi Syarfie, Syarfie Syelvia Putri Utami Syelvia Putri Utami Syelvia Putri Utami Syoffinal Syoffinal Thamrin Thamrin Toety Marliaty Trisuciati Syahwardini Trisuciati Syahwardini Trisuciati Syahwardini Umar Umar Ummy Aisyah Rochaeni Viodita Rizki Vivi Novriyani W, Ririen Wahyu Suci Rahmani Wahyu Suci Rahmani Wenny Susanty Wira Bima Stevent Sembiring Wira Irawan Rossani Wiranata, Arya Yanny Sartika Yelmida Azis Yoga Deswan Suwary Yoga Pratama Yogi Chandra Yolanda, Putri Gusti Yulia, Indri Yunus, Aulia Yusnila Halawa Zainal Abidin Zuchra Helwani Zul Amraini, Said Zuliarti, Indah Zultiniar Zultiniar Zultiniar, Zultiniar