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All Journal BIOLINK (Jurnal Biologi Lingkungan, Industri, Kesehatan) Al-Kimia JMM (Jurnal Masyarakat Mandiri) CARADDE: Jurnal Pengabdian Kepada Masyarakat Gema Wiralodra Jurnal Inovasi Teknik Kimia Journal of Appropriate Technology for Community Services Abdi: Jurnal Pengabdian dan Pemberdayaan Masyarakat Bubungan Tinggi: Jurnal Pengabdian Masyarakat Yumary: Jurnal Pengabdian kepada Masyarakat Jurnal Insan Farmasi Indonesia COMSERVA: Jurnal Penelitian dan Pengabdian Masyarakat Jurnal Ilmiah Berkala: Sains dan Terapan Kimia Jurnal Indonesia Sosial Teknologi Nanggroe: Journal Of Scholarly Service Nanggroe: Journal of Scholarly Service NAWASENA: Journal of Community Service Jurnal Penelitian Hasil Hutan
Zimon Pereiz
Department Of Chemistry, Faculty Of Mathematics And Natural Sciences, University Of Palangka Raya
Religion Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering 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 Mechanical Engineering Medicine & Pharmacology Neuroscience Nursing Physics Public Health Social Sciences Other

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POTENTIAL OF MAGNETITE (Fe₃O₄) SYNTHESIZED FROM ZIRCON SAND WASTE AS METHYLEN BLUE DYE ADSORBENT Marvin Horale Pasaribu; Karelius Karelius; Retno Agnestisia; Erwin Prasetya Toepak; Zimon Pereiz
Jurnal Inovasi Teknik Kimia Vol 9, No 2 (2024)
Publisher : Fakultas Teknik Universitas Wahid Hasyim

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31942/inteka.v9i2.10112

Abstract

Zircon sand mining is a major industry in Indonesia due to the country's vast zircon reserves. However, this industry also generates hazardous waste that can pollute the environment. This study aims to investigate the potential of magnetite (Fe₃O₄) synthesized from magnetic waste generated during zircon sand mining as an adsorbent for methylene blue dye removal. Magnetite was successfully synthesized via the co-precipitation method and characterized using XRD and FTIR. The synthesized magnetite demonstrated the ability to adsorb methylene blue from aqueous solutions with an adsorption efficiency of 68.52% after 80 minutes of contact time. The adsorption kinetics followed the pseudo second order model, evidenced by R² value of 0.9918, and the adsorption isotherm fitted the Langmuir model, indicating adsorption energy of 24.51 kJ/mol and adsorption capacity of 69.678 mg/g. These findings demonstrate the effectiveness of natural magnetite (Fe₃O₄) derived from zircon sand waste as an adsorbent for methylene blue dye removal. This research not only addresses the environmental issue caused by zircon sand mining waste but also develops a cost-effective and sustainable solution for methylene blue dye removal from wastewater.
SKRINING FITOKIMIA DAN UJI ANTIBAKTERI EKSTRAK ETANOL DAUN HANJUANG MERAH (Cordyline fruticose) TERHADAP BAKTERI Staphylococcus epidermidis Ayuchecaria, Noverda; Sri Martani, Natalia; Kartika Komara, Nisa; Chuchita; Pereiz, Zimon; Oksal, Efriyana
Jurnal Insan Farmasi Indonesia Vol 7 No 1 (2024): Jurnal Insan Farmasi Indonesia
Publisher : Sekolah Tinggi Ilmu Kesehatan ISFI Banjarmasin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36387/jifi.v7i1.1683

Abstract

Hanjuang Merah (Cordyline fruticosa) is one of the plants used by the Dayak people as traditional medicine. Red hanjuang is an ornamental plant that is very abundant in Indonesia, but there is still not much research that proves the efficacy of red hanjuang. The aim of this research was to determine the phytochemical screening and antibacterial activity of leaf extract of hanjuang merah (Cordyline fruticose) against the bacteria Staphylococcus epidermidis. The method used in sample extraction was maceration, while in the antibacterial test used the paper strip diffusion method with concentrations of 25%, 50%, 75% and 100%. The yield of ethanol extract of hanjuang merah leaf was 11.35%. There was an increase in the diameter of the inhibition zone with the addition of the concentration of ethanol extract of hanjuang merah leaf. The addition of ethanol extract of hanjuang merah leaf at a concentration of 75% sensitive inhibited the growth of Staphylococcus epidermidis bacteria. Secondary metabolites such as tannins, alkaloids, saponins, flavonoids and quinones found in ethanol extract of hanjuang merah leaves are considered responsible for inhibiting the growth of Staphylococcus epidermidis bacteria.
Teknik Pengelolaan Sanitasi Lingkungan untuk Meningkatkan Kesadaran Kesehatan Masyarakat Zimon Pereiz Pereiz; Chuchita; Efriyana Oksal; Joy Angel Aria Suma; Febrianto Afli; Waluyo Nuswantoro
CARADDE: Jurnal Pengabdian Kepada Masyarakat Vol. 7 No. 2 (2024): Desember
Publisher : Ilin Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31960/caradde.v7i2.2525

Abstract

Abstrak. Lingkungan hidup yang baik dan sehat sangat penting untuk kelangsungan hidup warga masyarakat. Sanitasi merupakan salah satu upaya untuk menjaga lingkungan dan kesehatan masyarakat dengan mengawasi faktor lingkungan hidup. Kegiatan sosialisasi teknik pengelolaan sanitasi lingkungan bagi warga masyarakat di Kelurahan Habaring Hurung telah dilaksanakan dengan baik. Kegiatan ini dilakukan melalui kerjasama dengan mitra yaitu kelompok warga masyarakat, kepala kelurahan dan staf Kelurahan Habaring Hurung, Kecamatan Bukit Batu, Kota Palangka Raya, Kalimantan Tengah. Kegiatan ini berlangsung dalam empat tahapan kegiatan, yaitu tahap survey lokasi, pengumpulan materi kegiatan, pelaksanaan kegiatan pengelolaan sanitasi lingkungan dan diakhiri dengan indikator keberhasilan. Berdasarkan hasil kegiatan, dapat disimpulkan bahwa kegiatan pengabdian masyarakat ini dapat menambah wawasan dan kemampuan tentang bagaimana melakukan teknik pengelolaan sanitasi lingkungan. Hal tersebut dapat kita lihat dari hasil kuisioner melalui pre-test dan post-test yang telah diisi oleh peserta kegiatan, dimana rata-rata peserta sebelum mengikuti kegiatan ini menjawab kurang mengetahui tentang teknik pengelolaan sanitasi lingkungan. Namun melalui informasi atau konten materi yang telah disampaikan, masyarakat menjadi mengerti dan memahaminya. Abstract. A good and healthy environment is very important for the survival of the community. Sanitation is one of the efforts to maintain the environment and public health by monitoring environmental factors. The socialization activity of environmental sanitation management techniques for residents in Habaring Hurung Village has been carried out well. This activity was carried out through collaboration with partners, namely community groups, village heads and staff of Habaring Hurung Village, Bukit Batu District, Palangka Raya City, Central Kalimantan. This activity took place in four stages of activity, namely the location survey stage, collection of activity materials, implementation of environmental sanitation management activities and ending with success indicators. Based on the results of the activity, it can be concluded that this community service activity can increase insight and ability on how to carry out environmental sanitation management techniques. This can be seen from the results of the questionnaire through the pre-test and post-test that have been filled out by the participants of the activity, where the average participant before participating in this activity answered that they did not know much about environmental sanitation management techniques. However, through the information or content of the material that has been delivered, the community understands and comprehends it.
Pelatihan Pembuatan Dodol dari Terong Ungu (Solanum melongena) pada Kelompok Tani Kelurahan Habaring Hurung Zimon Pereiz; I Nyoman Sudyana; Efriyana Oksal; Miranti Maya Sylvani; Chuchita Chuchita
ABDI: Jurnal Pengabdian dan Pemberdayaan Masyarakat Vol 6 No 4 (2024): Abdi: Jurnal Pengabdian dan Pemberdayaan Masyarakat
Publisher : Labor Jurusan Sosiologi, Fakultas Ilmu Sosial, Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/abdi.v6i4.971

Abstract

Terong ungu (Solanum melongena L.) merupakan salah satu produk tanaman hortikultura yang keberadaannya sudah menjadi makanan konsumsi masyarakat di Indonesia. Namun sering kali terong hanya diolah menjadi sebuah masakan atau sayuran. Pengabdian kepada Masyarakat ini melakukan sebuah inovasi pangan yaitu membuat sebuah makanan dodol yang berbahan dasar terong ungu. Pelaksanaan program pengabdian kepada masyarakat berlangsung di kelompok tani Kelurahan Habaring Hurung, Kecamatan Bukit Batu, Kota Palangka Raya, Provinsi Kalimantan Tengah. Program kegiatan ini dilakukan melalui 4 tahap kegiatan, diantaranya survey lokasi, pengumpulan bahan baku, pelatihan pembuatan dodol terong, dan indikator keberhasilan. Indikator keberhasilan di lakukan dengan metode pre-test dan post-test yang diisi oleh peserta kegiatan dalam bentuk kuisioner. Berdasarkan hasil kegiatan, dapat disimpulkan bahwa kegiatan ini mampu menambah wawasan dan kemampuan tentang bagaimana membuat dodol dengan bahan dasar terong ungu, bahkan para warga dapat mengimplementasikan dan menerapkannya inovasi pangan ini secara mandiri. Hal tersebut dapat kita lihat dari hasil kuisioner melalui pre-test dan post-test yang telah diisi oleh peserta kegiatan, dimana rata-rata peserta sebelum mengikuti kegiatan ini menjawab kurang mengetahui tentang teknik pengelolaan sanitasi lingkungan dengan presentase pemahaman pada saat pre-test hanya sebesar 16%. Namun melalui informasi atau konten materi yang telah disampaikan, masyarakat menjadi mengerti dan memahaminya, terlihat pada saat post-test Tingkat pemahaman sebesar 92%..
Permen Buah Karamunting: Inovasi Pangan Lokal untuk Penanggulangan Stunting pada Anak Pereiz, Zimon; Oksal, Efriyana; Chuchita, Chuchita; Sylvani, Miranti Maya; Komara, Nisa Kartika
Yumary: Jurnal Pengabdian kepada Masyarakat Vol. 4 No. 4 (2024): Juni
Publisher : Penerbit Goodwood

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35912/yumary.v4i4.2515

Abstract

Purpose: Stunting is a condition in which a child's physical growth and development are hampered due to malnutrition during the growth period. This condition occurs in children under 5 years of age. This age period is critical for the formation and development of body organs in children. Therefore, an innovative and holistic approach is needed to prevent stunting. One potential that can be exploited is the fruit of the karamunting plant (Rhodomyrtus tomentosa), which has traditionally been used as an herbal medicine. Candy containing healthy and delicious caramunting fruits can be an interesting way to increase nutritional intake, especially for children who have barriers to consuming nutritious food. Methodology: Implementation of community service through an educational workshop on the importance of knowledge about stunting prevention in children through local food innovation with Karamunting fruit candy (Rhodomyrtus tomentosa) was carried out on Saturday, October 7, 2023, between: 08.00-11.00 WIB, with the activity location at Habaring Hurung Village Hall. The partners for this community service activity are the heads and staff of Habaring Hurung Village, Bukit Batu District, Palangka Raya City, and Central Kalimantan. The targets of this service activity are mothers and children in Posyandu. Service procedures are the coordination, observation, activity implementation, and evaluation stages. Results: The participants understood the dangers and prevention of stunting in their children. The participants understood how to make karamunting fruit candy a local food that can be used and developed. Limitations: Karamunting fruit candy as a food innovation to prevent stunting produced by this community service program has no known expiration date or shelf life and there is no standard composition or dosage for candy to prevent stunting. Contribution: This community service activity can have a positive impact on the people of Hurung Village. This activity is able to increase insight and the ability to prevent the spread of stunting through innovation in making candy from karamunting fruit, even if residents can implement it independently.
ISOLASI BAKTERI ENDOFIT DARI TUMBUHAN KELAKAI (Stenochlaena palustris (Burm) Bedd). Oksal, Efriyana; Ngazizah, Febri Nur; chuchita; Irawan, Ahmad; Pereiz, Zimon
Jurnal Insan Farmasi Indonesia Vol 7 No 3 (2024): Jurnal Insan Farmasi Indonesia
Publisher : Sekolah Tinggi Ilmu Kesehatan ISFI Banjarmasin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36387/8x82wj94

Abstract

Kelakai (Stenochlaena palustris) is a type of medicinal fern used by the Dayak ethnic community in traditional medicine. The diverse bioactivity of kelakai is closely related to its high antioxidant content. The phytochemical compounds found in kelakai, such as phenols, flavonoids, anthocyanins, hydroxycinnamic acid, proanthocyanidins, tannins, alkaloids, saponins, carotenoids, and terpenoids, are believed to be produced by the endophytic microbes present in kelakai. Endophytic bacteria can be isolated from the plant, such as leaves, stems, bark, and roots. This research aims to isolate and identify endophytic bacteria from S. palustris. The method used is direct planting. The samples used are the leaves and stems of S. palustris. The results of the research conducted revealed six isolates of endophytic bacteria found in the leaves and stems, namely D1, D2, B1, B2, B3, and B4, which exhibit different colony morphology on the surface and color, while having similar shapes and edges. The results of the Gram staining test on the endophytic bacteria showed negative results and they are rod-shaped. In this study, endophytic bacteria S. palustris were successfully obtained from leaves and stems, which can be further analyzed for their activity.
THE EFFECT OF ORGANIC BIOFERTILIZER FROM BSF LARVAE (Hermetia illucens) AND LOCAL MICROORGANISM ON THE GROWTH OF CAISIM MUSTARD PLANTS Neneng, Liswara; Ngazizah, Febri Nur; Oksal, Efriyana; Pereiz, Zimon; Sari, Nopita Tamara; Aprilia, Indri; Chuchita
BIOLINK (Jurnal Biologi Lingkungan Industri Kesehatan) Vol. 11 No. 2 (2025): Biolink February
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/biolink.v11i2.13289

Abstract

One of the solutions developed for utilizing organic materials in agriculture is the use of biological fertilizer. This research is different from previous fertilizer research, where the biofertilizer in this study came from empty palm oil bunches, animal waste by using maggots (BSF larvae, Hermetia illucens) and local microorganisms to degrade them. The aim of this research is to obtain the composition of organic biofertilizer from three wastes that have been processed using maggots and local microorganisms. This research method uses RAL with 12 treatments with 3 repetitions. The results of a study of organic biofertilizer from BSF larvae and a consortium of local microorganisms on white mustard plants (Brasica chinensis) showed that treatment with a combination of animal waste, microbes and BSF larvae showed good results on the growth of white mustard plants. This is proven by the results of measuring soil pH, the highest height of chicory plants and the highest number of leaves compared to other organic biological fertilizer treatments, which were produced at the end of the measurement on day 30, the pH in the treatment with that combination is 4, plant height is 33 cm, and the number of leaves is 20.
The Potential of Ironwood as an Activated Carbon Adsorbent for Heavy Metal Mercury (Hg) Using the Pyrolysis Method Pereiz, Zimon; Oksal, Efriyana; Chuchita, Chuchita; Sylvani, Miranti Maya; Pebriyanto, Yunus
Jurnal Sains dan Terapan Kimia Vol 19, No 1 (2025)
Publisher : Program Studi Kimia, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jstk.v19i1.20957

Abstract

This study focuses on the utilization of ironwood as an activated carbon adsorbent to remove heavy metal mercury (Hg). The background of the problem includes mercury pollution from various industrial sources and its harmful impacts on the environment and human health. The purpose of this study was to develop an effective method for adsorbing mercury using natural ironwood materials. The research method involves the synthesis of activated carbon through pyrolysis and chemical activation processes, followed by a series of adsorption tests on mercury with variations in pH conditions, contact time, and acid concentration. The research data showed that the optimum adsorption capacity was achieved at a mercury concentration of around 500 ppm, with high adsorption efficiency at pH 1 and a contact time of 80 minutes. The results also showed that the adsorption kinetics followed a second-order model with a rate of 0.017119 g/mg.min. In conclusion, the mercury adsorption process using activated carbon from ironwood followed the Langmuir isotherm model, with an adsorption capacity of 63.036 mg/g, indicating that the adsorbent had been successfully synthesized and had an effective ability to remove mercury.
Socialization on Making Solid Soap from Coffee Essential Oil in SMAN 4 Palangka Raya: Sosialisasi Pembuatan Sabun Padat dengan Penambahan Minyak Atsiri dari Kopi di SMAN 4 Palangka Raya Siti Unvaresi Misonia Beladona; Zimon Pereiz; Wahyu Nugroho
NAWASENA : JOURNAL OF COMMUNITY SERVICE Vol. 1 No. 01 (2023): Vol 01 No 01 2023
Publisher : NAWASENA : JOURNAL OF COMMUNITY SERVICE

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

Abstract

Abstrak Sabun merupakan campuran antara senyawa kimia dari asam lemak yang dapat diturunkan dari minyak nabati atau lemak hewani dengan alkali berupa natrium ataupun kalium hidroksida pada suhu 80-100°C melalui reaksi saponifikasi (penyabunan). Sabun digunakan sehari-hari sebagai pembersih, pengharum, dan pendukung Kesehatan kulit. Pemanfaatan sabun sebagai pembersih kulit semakin beragam, terlihat dari jenis, warna, wangi dan manfaat yang ditawarkan. Minyak atsiri dari kopi merupakan salah satu bahan alami yang dapat ditambahkan pada pembuatan sabun karena memberikan aroma atau wangi yang banyak disukai konsumen. Selain itu, minyak atsiri dari kopi juga memberikan efek melembutkan dan menenangkan kulit. Hal ini karena kopi mengandung senyawa kafein dan polifenol. Program Studi Kimia Universitas Palangka Raya melakukan kegiatan pengabdian kepada masyarakat melalui sosialisasi pembuatan sabun padat dengan penambahan minyak atsiri dari kopi di SMAN 4 Palangka Raya. Kegiatan ini terdiri dari tiga tahap, yaitu tahap persiapan sosialisasi, pelaksanaan sosialisasi, dan evaluasi hasil pengabdian. Hasil dari kegiatan pengabdian ini menunjukkan bahwa materi dapat dipahami dengan baik dan kegiatan ini sangat bermanfaat bagi siswa di SMAN 4 Palangka Raya. Sosialisasi ini dilakukan untuk memberikan pengetahuan tentang pembuatan sabun padat dengan penambahan minyak atsiri dari kopi. Abstract Soap is a mixture of chemical compounds from fatty acids derived from vegetable oils or animal fats withan alkali of sodium or potassium hydroxide at 80-100°C through a saponification reaction. Soap is used daily asa cleanser, fragrance, and skin health support. The use of soap as a skin cleanser is increasingly diverse, seenfrom the type, color, fragrance, and benefits offered. Coffee essential oil is one of the natural ingredients that canbe added to soap making because it gives a scent that many consumers like. In addition, the coffee essential oilalso has a softening and soothing effect on the skin. This is because coffee contains caffeine and polyphenolcompounds. Department of Chemistry Universitas Palangka Raya conducts community service activities throughthe socialization of making solid soap with the addition of coffee essential oils at SMAN 4 Palangka Raya. Thisactivity consists of three stages, namely the preparation stage for socialization, implementation of socialization,and evaluation of the results of community service. The results of this service activity show that the material canbe understood well and this activity is very useful for students at SMAN 4 Palangka Raya. This socialization wascarried out to provide knowledge about making solid soap with the addition of coffee essential oils.
PENGUJIAN KUALITAS ARANG DARI SERBUK ULIN DENGAN 2 METODE PENGERINGAN Alpian; Segah, Hendrik; Oksal, Efriyana; Chuchita; Pereiz, Zimon; Supriyati, Wahyu
Jurnal Penelitian Hasil Hutan Vol. 42 No. 2 (2024): Jurnal Penelitian Hasil Hutan
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/jphh.2024.7743

Abstract

Arang merupakan salah satu bahan yang banyak digunakan dalam berbagai industri, terutama sebagai bahan bakar. Pemanfaatan serbuk kayu Ulin berupa limbah dari industri kayu, memiliki potensi untuk diolah menjadi arang berkualitas tinggi melalui proses pirolisis. Penelitian bertujuan untuk menguji kualitas arang yang dihasilkan dari serbuk kayu Ulin dengan metode pirolisis pada suhu asap 80°C selama 8 jam, menggunakan 10 ulangan. Parameter yang diukur meliputi rendemen, kadar air, kadar zat mudah menguap, kadar abu, dan kadar karbon terikat, yang dibandingkan dengan standar SNI 1683:2021. Metode penelitian dilakukan dengan dua perlakuan utama, yaitu serbuk Ulin yang dikeringkan menggunakan gelombang mikro dengan daya 450 Watt selama 1 jam dan serbuk yang dikeringkan dengan metode pengeringan udara. Hasil pengujian menunjukkan bahwa rendemen arang dari serbuk Ulin dengan pengeringan gelombang mikro mencapai 48,57%, sedangkan yang dikeringkan udara mencapai 46,73%. Kadar air pada serbuk Ulin kering udara (5,72%) lebih tinggi dibandingkan dengan serbuk gelombang mikro (3,89%), sementara berturut-turut untuk kadar zat mudah menguap (42,35% dan 50,50%) dan kadar karbon terikat (56,72% dan 48,52%) menunjukkan hasil uji T menunjukkan berpengaruh signifikan. Kadar abu (0,94% dan 0,98%) menunjukkan hasil uji T menunjukkan tidak berpengaruh signifikan. Kesimpulan dari penelitian ini adalah bahwa metode pirolisis pada suhu asap 80°C efektif dalam menghasilkan arang dengan kualitas yang baik dari serbuk kayu Ulin, terutama pada perlakuan pengeringan menggunakan gelombang mikro. Kualitas arang yang dihasilkan memenuhi standar SNI, yaitu kadar air dan kadar abu.  
Co-Authors A, Abdullah A, Anjelika AFAF BAKTIR Ahmad Irawan, Ahmad Alpian Anatasya, Violina Apriyanti, Mauliya Ayuchecaria, Noverda Berlisnora Dasilva, Caroline C, Chuchita Catur Prasetyo, Debby Chuchita Chuchita Chuchita Chuchita, Chuchita Citrariana, Shesanthi Dandy, Jonathan Devianti, Gusnia Efriyana Oksal Efriyana Oksal Efriyana Oksal Efriyana Oksal Eka Jaya Prastiti, Arini Erwin Prasetya Toepak Fatah, Abdul Hadjranul Fauzi, M. Zainuddin Lutfi Febrianto Afli Florensia, Ornella Arnia H, Heja Hairiah, Rusliananur Hakim, Muh. Supwatul Hendrik Segah, Hendrik Hutabalian, Gracyela I Nyoman Sudyana Indri Aprilia, Indri J, Julia Joy Angel Aria Suma Karelius Karelius Komara, Nisa Kartika Liswara Neneng Marvin Horale Pasaribu Maya Sylvani, Miranti Miranti Maya Sylvani Natalia Sri Martani Ngazizah, Febri Nur Nisa Kartika Komara Oksal, Efriyana Pangestika, Inten Pebriyanto, Yunus Prayoga, Andika Prisnanda, Risky Rahman, Sudarman Retno Agnestisia Sabatini, Felly Sari, Meiyanti Ratna Kumala Sari, Nopita Tamara Siti Unvaresi Misonia Beladona Solla, Angelia Stepanus Fredi Manurung Sylvani, Miranti Maya Telaumbanua, Mesra Ratna Sari Tundan, Arisumi Ir L Wahyu Nugroho Wahyu Supriyati Waluyo Nuswantoro Zahrotun Nafisah