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All Journal Indonesian Journal of Geography Maspari Journal Jurnal Natur Indonesia Jurnal Perikanan dan Kelautan Berkala Perikanan Terubuk Jurnal Ilmu Lingkungan Jurnal Ilmu Perairan (Aquatic Science) Maspari Journal Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Sumatra Journal of Disaster, Geography and Geography Education Agro Bali: Agricultural Journal Asian Journal of Aquatic Sciences Unri Conference Series: Community Engagement ECOTONE Jurnal Zona Journal of Coastal and Ocean Sciences Journal of Rural and Urban Community Empowerment Dinamika Lingkungan Indonesia CANANG: Jurnal Pengabdian Masyarakat NUSANTARA: Jurnal Pengabdian Kepada Masyarakat Jurnal Ilmu-Ilmu Kehutanan Pandawa : Pusat Publikasi Hasil Pengabdian Masyarakat South East Asian Marine Sciences Journal Jurnal Perikanan dan Kelautan Tropical Marine Environmental Sciences Jurnal Natur Indonesia

Efriyeldi, Efriyeldi

Fakultas Perikanan Dan Kelautan, Universitas Riau

Author-ID : 1187686

Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Environmental Science Immunology & microbiology Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Physics Public Health Social Sciences Other

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Toxicity of Eucheuma cottonii seaweed extract with Methanol and N-Hexane solvents for Artemia salina larvae Zakaria Kaharudin; Irvina Nurrachmi; Efriyeldi Efriyeldi
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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Abstract Seaweeds are very popular in the world of commerce, in science known as algae. Algae consists of four classes: Rhodophyceae (Red Algae), Phaeophyceae (Brown Algae), Chlorophyceae (Green Algae), and Cyanophyceae (Green-blue algae). Seaweed contains secondary metabolite compounds in the form of alkaloids or flavonoids that are useful as medicines and other purposes such as cosmetics and other industries. Seaweed is known to be rich in essential nutrients, such as enzymes, nucleic acids, amino acids, minerals, trace elements and vitamins A, B, C, D, E and K so it is also known as traditional medicine for cough, asthma, bronchitis, tuberculosis, abdominal pain, fever and rheumatism. This research was conducted in February - March 2018 in Sugie Village, Karimun Regency, Riau Islands Province, which aims to produce seaweed extract E. cottonii using Methanol and N-Hexane solvent and knowing LC50 value of Seaweed extract E. cottonii. Data were obtained by using BSLT (Brine Shrimp Lethality Test) method. The results of the study showed that the extract obtained from 5 kg of seaweed (wet weight) as much as 513 mL of concentrated extract. Seaweed extract with type E. cottonii was toxic to test animal A. salina. The LC50 value of E. cottonii extract dissolved in methanol was 40.2438 ppm.Keywords: toxicity, Extract of Seaweed, Desa Sugi

Analisis kandungan logam berat pb, cu dan zn pada daging dan cangkang kerang kepah (meretrix meretrix) di perairan batubara sumatera utara Doni Gunawan Tampubolon; Bintal Amin; Efriyeldi '
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 1, No 1 (2014): Wisuda Februari Tahun 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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The research was carried out in April 2013 to analyze the content of heavy metal Pb, Cu and Zn in soft tissues and shells of hard clam (Meretrix meretrix) from coastal waters of Batubara and to find out the correlation between size and content of heavy metals in both hard and soft tissues, as well as to determine the safe level for consumption of this organism. The results showed that the content of heavy metals Pb in the shells is higher than in soft tissues while Cu and Zn is higher in the soft tissues. The average heavy metals content in soft tissues were different with size, where Pb (1,83 μg/g) and Cu (4,25 μg/g) was found to be higher in larger size and Zn (23,44 μg/g) was found to be higher in smaller size. In the shells Pb was higher in smaller size (2,96 μg/g), Cu was higher in larger size (4,35 μg/g) and Zn was higher in larger size (23,44 μg/g).

ANALYSIS OF MANGROVE FOREST AREA CHANGE USING LANDSAT IMAGE DATA IN ROKAN HILIR REGENCY RIAU PROVINCE Ramadani Safitri; Musrifin Ghalib; Efriyeldi '
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 4, No 2 (2017): Wisuda Oktober Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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The research has conducted in November 2016-April 2017 in Rokan Hilir Regency and was aimed to identify and inventory the data of mangrove forest area in 1994-2017 at Rokan Hilir Regency using Landsat image data analysis . The research was conducted by survey method. The quantitative method was used on the change of mangrove forest area observation. The result of 473 RGB composite on Landsat 5 and 564 RGB composite on Landsat 8 image showed the mangrove areas in 1994, 2004, 2007 and 2017 are 31,550 ha, 28,370 ha, 23,357 ha and 19,724 ha. There was a decrease of 3,180 ha in total of mangrove area in 1994-2004, in 2004-2007 was 5,013 ha and in 2007-2017 was of 3,633 ha which if added in the period of 23 years there was a decrease of 11,826 ha of mangrove area. The accuracy test of interpretation results and ground check results obtained a value of 100% accuracy, while the accuracy test between landsat images and the the results of classification obtained 95.6%.Keywords : Mangrove Forest, Change of Area, Landsat Image, Rokan Hilir

ADHESION OF LACTIC ACID BACTERIA (LAB) TO INTESTINAL EPITHELIAL CELLS OF RED SNAPPER (Lutjanus argentimaculatus) IN INHIBITING Vibrio alginolyticus Gavion Roston Sitepu; Nursyirwani '; Efriyeldi '
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 3, No 2 (2016): Wisuda Oktober Tahun 2016
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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The research was conducted from November 2015 until March 2016 in the Marine Microbiology Laboratory and in the Laboratory of Aquaculture Enviromental Quality of in the Faculty of Fishery and Marine Science, Riau University. The purpose of this research was to determine the adhesion ability of Lactic Acid Bacteria (LAB) isolates on intestinal epithelial celss of red snapper (L. argentimaculatus) and in inhibiting adhesion of V. alginolyticus. Completely randomized design (CRD) method was performed in this experimental research. Two factors treated were three LAB isolates (KP 1, KP 2, KP 3 and concertio) and V. alginolyticus. Three adhesion methods applied were competitive, competition and displacement. Adhesion of bacteria to the epithelial cells was calculated based on number of bacterial cells adhered. The results showed that all LAB isolates had higher adhesion ability than V. alginolyticus. Isolate concertio indicated the highest adhesion ability (52.67±7.76 cells/epithelial cells) to the epithelial cells and the lewest was indicated by isolate V. alginolyticus (23.11±2.79 cells/epithelial cells). However, the inhibition ability of the three LAB isolates upon V. alginolyticus by the three adhesion methods was not significantly different.Keywords: Adhesion, Lactic acid bacteria (LAB), V. alginolyticus, Intestinal epithelial cells, red snapper.

Sosisalisasi Rehabilitasi Hutan Bakau Dalam Penyelamatan Lingkungan Pesisir Desa Buruk Bakul Kecamatan Bukit Batu, Bengkalis Yusni Ikhwan Siregar; Defri Yoza; Efriyeldi Efriyeldi
CANANG: Jurnal Pengabdian Masyarakat Vol 1, No 2 (2021)
Publisher : PELANTAR PRESS

Degaradation and destruction rate of the coastal ecosystem, especially mangrove ecosystem, increase in Bengkalis Regency due to over exploitation and conversion. Therefore attempts to overcome the problem become important. The objective of the study was to provide and promote basic knowledge on the importance of mangrove ecosystem to the environment, especially to the village community of Buruk Bakul. Further, the extension also aimed at providing physical, ecological and economical use and benefit that people obtain from the mangrove ecosystem. The participants of total 30 persons, with background of farmer, fishermen, local leader, young leader, and of non-government organization “Sekat Bakau” of the Buruk Bakul were trained. Pre-survey were done to find out the main issue on coastal environmental threats in the village area. The extension were carried out through class presentation, interactive discussion and demonstration of mangrove plantation in the field. The effectiveness of the extension were evaluated to the participants through items in questioner which evaluate the change in knowledge and understanding on the ecological, economical and physical function of mangrove ecosystem. Apparently, the level of knowledge were categorize into very good (60%),good (30%) and fair (10%). Based on that, the extension were categorized success.. The impact on the implementation in the field were that of knowledge dissemination to young group in technical nursery and planting of mangrove trees.

Utilization of Sleeping Peatlands Areas as Forage Feed Provider in The Intensive Beef Cattle Farming at Pelalawan District, Indonesia Nawari Nawari; Rasoel Hamidy; Yusni Ikhwan Siregar; Sukendi Sukendi; Efriyeldi Efriyeldi
ECOTONE Vol 2, No 2 (2021)
Publisher : Riau University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ecotone.2.2.p.72-79

Pelalawan District has several sleep peatland areas, which overgrown with grass weeds. This area has the potential to become a sources of beef cattle farming feed in the intensive livestock system. The potential of the beef cattle market is still prospective as a source of protein demanded by the majority peoples. This study aims to valuate and evaluate the potential carrying capacity and economic value of sleep peatlands area as forage provider. This research method was descriptive approach. The data used in this study is secondary data collected from various reliable sources and previous related research. Carrying capacity was expressed by estimate the land's ability to provide cattle feed. Economic analysis is carried out by estimate profit which obtained from the intensive beef cattle farming system. The analysis results shows that sleep peatland areas that potential to supports intensive beef cattle farming around 3,210 ha with carrying capacity = 9,078 cows/year. This carrying capacity was higher than the current beef cattle population around 1,992 cows. The potential economic value reaches IDR 45.56 B/year, which is higher than the current actual economic around IDR 9.99 B. It’s necessary to improve management aspects by integrating the development of intensive cattle farming systems with community-based peatland restoration programs, corporate social responsibility, and SDGs achievement commitments. This requires a solid partnership among stakeholders that will increase the management dimension towards a more sustainable way.

Accumulated Heavy Metals Pb, Cd And Cr in Avicennia Marina Around The Ex-Bauxite Mining Area in Tanjungpinang City Diana Azizah; Rasoel Hamidy; Mubarak Mubarak; Efriyeldi Efriyeldi; Sri Murtin
ECOTONE Vol 2, No 1 (2021)
Publisher : Riau University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ecotone.2.1.p.42-51

The former mining area in Tanjungpinang City was found around the Carang River and Senggarang Village. There was sedimentation containing red mud from the rest of the mining activities that covered the mangrove substrate. The impact is expected to affect the life of the surrounding mangroves. One of the dominant species found is Avicennia marina. This study aims to determine the absorption ability of heavy metal A. marina found around the former bauxite mining area of Tanjungpinang City. The study was conducted from April to August 2020. The study was conducted by a survey by sampling the sediment around the A. marina tree and its organs (roots, stems, and leaves) in the laboratory using the Atomic Absorption Spectrophotometer (AAS). The results of the analysis showed that the concentration of Pb in the sediment ranged from 0.2215-0.2711 ppm; Cd concentration ranged from 0.0113-0.0721 ppm; and Cr ranged from 0.0221-0.0633 ppm. The highest average metal concentration value for Pb was in the Carang River (root organ with a value of 2.1691 ppm); Cd metal in Senggarang (stem, 0.0951 ppm); and Cr metal in Senggarang (root, 0.4988 ppm). The phytoaccumulation mechanism of Pb, Cr, and Cd by A. marina is rhizofiltration (TF<1), while the BCF value indicates that A. marina is non-accumulator/low accumulator (BCF < 250 ppm).

Length-Weight Relationship and Sex Ratio Blood Clam (Anadara granosa) in Rangsang Barat Waters Kepulauan Meranti District, Riau Province Efriyeldi Efriyeldi; Yusni Ikhwan Siregar; Sofyan Husein Siregar
Jurnal Perikanan dan Kelautan Vol 27, No 2 (2022): June 2022
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.27.2.158-163

Anadara granosa is one of the bivalves that are often found in public markets. This study aimed to study the relationship between length-weight and sex ratio of blood clams (A. granosa) in the coastal waters of West Rangsang. Sampling was carried out every month at three stations. Shells were collected from a 1 x 1 m2 plot on a quadratic transect. The relationship between length and weight was analyzed by regression analysis. The sex ratio between the number of female and male blood clams in each month of sampling was calculated and followed by the Chi square test to test the similarity. The results showed that the relationship between length and weight of A. granosa was positive allometric. The sex ratio of female and male blood clams in the waters of West Rangsang is not balanced. The number of male blood clams is more than the female.

Model Kelembagaan Terpadu Pencegahan Kebakaran Hutan Dan Lahan Di Kabupaten Kepuluan Meranti Provinsi Riau Jufri Jufri; Sujianto Sujianto; Bintal Amin; Efriyeldi Efriyeldi
Dinamika Lingkungan Indonesia Vol 5, No 2 (2018)
Publisher : Universitas Riau

Riau is one of the most vulnerable provinces to forest and land fires in Indonesia, Meranti Islands Regency Riau Province is one of the worst places. Forest and land fires in the Meranti Islands Regency occur during the dry season. Various prevention efforts have been carried out by the government. Meranti Islands Regency 60% is this peat area which causes opportunities for forest and land fires. This study analyzes: 1) the causes of forest and land fires in the Meranti Islands Regency, 2) the impact of forest and land fires on ecology, social and economy, 3) local wisdom owned by communities who are able to protect forests and land, 4) find prevention models forest and land fires based on integrated and effective institutions. This study uses a survey method. The data obtained were analyzed descriptively by using the mix methods approach by combining two forms of quantitative and qualitative approaches. Data analysis uses statistics with Pearson Correlation test and SWOT analysis. The results of the analysis concluded that the most dominant variables causing forest and land fires in the Meranti Islands Regency were socio-cultural conditions (69.06%) , this also has an impact on socio-cultural factors (62.68%). local wisdom in the community is one effort that can prevent forest and land fires, is the tradition of sago planting and bele kampung tradition. The results of the SWOT analysis produce an alternative S-O (Strenghts-Opportunity) strategy in cell 1 position with the power to take advantage of opportunities. The model for preventing forest and land fires based on integrated institutions is: 1) government, 2) research institutions are universities, 3) community institutions such as the Fire Concern Society (MPA).

Fitoakumulasi Logam Berat Pb dan Cr pada Rhizophora mucronata di Sekitar Kawasan Bekas Tambang Bauksit, Pulau Bintan Diana Azizah; Rasoel Hamidy; Mubarak Mubarak; Efriyeldi Efriyeldi
Dinamika Lingkungan Indonesia Vol 8, No 2 (2021)
Publisher : Universitas Riau

Bintan Island has a high potential for bauxite mining. Many ex-mining areas have not been reclaimed properly, resulting in erosion and accumulation of heavy metals Pb and Cr which are high in the sediment (red-mud) and deposited in the roots of mangrove forests on the coast of Bintan. Rhizophora mucronata is one of the species that dominates the Bintan mangrove forest. The purpose of this study was to determine the phytoaccumulation of Pb and Cr metals in R. mucronata in the former bauxite mining area ofBintan Island. This research was conducted by survey, digested and analysed using Atomic Absorption Spectrophotometer (AAS). The concentrationof Pb and Cr in the sediment, as well as the roots, stems and leaves of R. mucronata were used for the analysis of phytoaccumulation types. The results of the Pb concentration test were higher than Cr. Based on the sampling location, the concentration of Pb metal accumulation in the sediment is Tembeling <Sei Carang <Wacopek <Senggarang, while Cr metal is Tembeling <Wacopek <Sei Carang <Senggarang. The highest metals accumulation in R. mucronata was found in the roots (Pb = 3,3482 ppm, Cr = 0,7664 ppm), while the leaves (Pb = 1,1076 ppm, Cr = 0,0413 ppm) had the lowest concentration. Based on the type of accumulation, R. mucronata absorbs Pb metal with a rhizofiltration mechanism (TF <1), which means that the roots of R. mucronata effectively translocate Pb as a pollutant to its body from the soil. In addition, the bio-concentration factor (BCF) concentration of R. mucronata <1 indicates the role of R. mucronata as a plant that accumulates very little Pb (low accumulator/non-hyperaccumulator). This adaptation mechanism is important information in the rehabilitation of mangrove areas using R. mucronata, because it can still live and grow in an environment contaminated with Pb metal by absorbing a little Pb from the soil and translocating it effectively in its organs.

Co-Authors ', Zefendra ', Zulkifli AA Sudharmawan, AA Abdullah, Ikhlas Abiyu Rohid Adani Fatahilal Arifin Adila, Melin Adiyatma, Patwa Afrizal Tanjung Agnesia, Yohana Agus Mandar, Agus Agus Sutikno Agusti, Dianda Roaana Agusti, Dinda Roanna Ahmad Pasmuji Ahmadryadi_ahmadryadi Ahmadryadi_ahmadryadi Akmal Hawari Alfiana, Dewi Alghani, Muhammad Roif Alpian Alya, Alya Ananda, Nahdya Nasri Andreas Situmorang Andrew ST OS Andri Hendrizal Andrito, Wahyudi Angelia E Bernike Zebua Anggina, Viona Novi ani ani Anugrah, Muhammad Dea Aprizon Putra Aras Mulyadi Arbianti, Purnama Ardiana, Eka Ariaz, Panji Ahmad Arif Rahman Hakim Arifin, Adani Fatahilal Arlius Arlius, Arlius Arniati, Dina Asma Husna Putri Asma Ul Husna Putri Ayuni, Putri Bagas Ariya Pambudi Bahari, Sandy Batubara, Ummi Mardhiah Bintal Amin Bona Juandi Bonawi Sihombing Bonita Tiolina Exaudi Budijono, Budijono Burhan Marbun Cahyo, Bintang Dwi Cut Shifa Nedi Dame, Jupparoh Caisar Van Dandi Arianto Pelly David Raymond Sianturi Dedi Afandi Defri Yoza Dela Haryani Dermawan, Ernanda Putra Desmarina, Y. Despela, Despela Dessy Yosswaty Dessy Yoswaty Dessyka Febria, Dessyka Destriana Destriana Dewi Alfiana Dewi, Delviana Dianda Roanna Agusti Dietriech Geoffrey Bengen Doni Gunawan Tampubolon Dwigantara, M. Fadhol Eko Prianto, Eko Elfind Laoli Elfis Suanto Elizal, Elizal Endi Setiadi Eni Sumiarsih Enny Herawaty Simamora Erick Palatema Esti Nur Rahayu Esti Nur Rahayu Exaudi, Bonita Tiolina Fachry Abda El Rahman Fajriani Ananda Fajriani, Annisa Farona, Fella Fazli Pasha Amri Febrianto Roby Mukhti Fernando, Muhammad Zebi Fia Novianty Fitria Roza Fitriani, Ersa Friska Maulidah Fuadi, Indra Gavion Roston Sitepu Ginting, Dya Indriati Br Ginting, T.B. Gita Purnama Sari, Gita Purnama Gusfi, Melly Hadi Sastranegara Hadiyatma, Patwa Halida Sisda Harahap Hanryani, Putri Hapzi Ali Harahap, Anugrah Setiadari Hardianto Andita Harry Leonardo Barutu Hasan, Masyhuda Hasanah, Siti Umiyatul Hasyim, Ardhan Fadhlani Hendra Taufik Herrys V Silalahi Hersa, Tania Hesty Widyaningsih Homsatun, Nuning Hutomo, Ragil Tribhakti Ida Ayu Putu Sri Widnyani Ikhsan Setiawan Ilham hidayat Ilham Ilahi Imanuel, Andrean Nggara Imran , Imran Imran Imran Indra Bayu Pratama Indradewa, Rhian Inel Vivi Elvia Inka Wahyuni Intan, Selpia Irvina Nurachmi Irwan Effendi Iskan Fami Jumaidi Isnaini, Siti Joko Samiaji Josua Simanjuntak, Josua Judika Nursiani Sipahutar Jufri Jufri Jufri Jufri Junika Cecelia Putri Jupri, Tahany Nur Fadhilah Jupri, Tahany Nur Fadhillah Kaharudin, Zakaria Karnila, Rahman Karnila Kartina ' Khairunnisa Khairunnisa Khawarizmi, Dannes M. Kholida, Azzahra Kristoper Aritonang Laila Langsana Laksono Trisnantoro Langsana, Laila Laoli, Elfind Lee, Seung Hun Lianov, Dea Lieng, Lieng Lubis, Abdillah Lucky Syarif M, Ridwan Rafsyanjani. M. Fadhol Dwigantara M. Subkhan Riza Maria Erna Martha, Rezky Dwi Matondang, Ridwan Rafsyanjani Maulana, Agung A. Mayrany, Sri Eva Meitasuri, Gevi Mia Fatma R Miswadi Miswadi Mubarak Mubarak Mubarak Mubarak Muhammad Aulia Rahman Muhammad Farhan Muhammad Rafsan Zain Muhammad Rizki Fadly Muhammad Rizky Rinaldi Muhammad Rusdi Muhammad Sabirin Muhammad Syarif Muhammad Zebi Fernando Muhammad Zebi Fernando Muhammad Zulkifli, Muhammad Mukhlis Alfarys Musrifin Galib Musrifin Ghalib Musrifin Musrifin Nababan, Sitty Mey Nabila, Chici Nabilah Jauharah Nadeak, Paulinus Nadida, Putri Nadiyatus Sholihat Nadratul Jamila Nasution, Fadli Ripai Nasution, Muhammad Rasid Naufal Sidqi Nawari Nawari Nawari Nawari, Nawari Noel GM Situmorang Novia Suci Yanti Novri Ditama Syafni Nuning Homsatun Nurafni, Melia Nurmalahayati, Yasinta Nursyirwani, Nursyirwani Oktari, Mela Oktaria, Rusiani Pambudi, Bagas Ariya Panggabean, Iis Panggabean, Iis Apriati Panji Ahmad Ariaz Patwa Hadiyatma Paul Rozeki Sinaga Pohan, Rizal Suardiman Pramita, Wisnu Pratama, Muhammad Dandy Syifa Prayitno, Betari Erlinda Putri Ayuni Putri Rifdayati Putri, Dinda Maharani Putri, Rahmi Putri, Rahmi Delima Putrianfi, Nadhifah Asilah Rafsyanjani M, Ridwan Rahma Eka Putri Rahmadhani, Tami Fitri Rahmi Susanti Rahmita, R. Raja Rahmita Ramadani Safitri Ramadhan, A.R Ramadhan, A.R. Ramadhan, Muhammad Farizqy Rangga Wardana Rasoel Hamidy Razid, Muhamad Renata, Vivien Reny Cristina Naibaho RIDWAN AFFANDI Ridwan Manda Putra Rifaldi Rifaldi, Rifaldi Rifardi Rifda Syofiana R Rifdayati, Putri Rini, Yulia Sapta Rivaldi, Rahmat Rizki Dwi Yezelkiel Rizki, A. Romie Jhonnerie Ronal Kurniawan Rosiana, Kenny S. Pane, Rolis Sabirin, Muhammad Safatriani Safatriani Safitri, Winda Santi Maya Sari Saputra, Rengki Sari, D.J. Sari, Dwi Julita Sari, Lita Sari, Nova Iman Savita, Dinda Sihombing, Kelvin Simamora, Enny Herawati Siregar, , Yusni Ikhwan Siregar, Ali Mora Hadamean Siregar, Rifa Ghina Aulia Siti Anisah Siti Fatonah Siti Hasanah Siti Umiyatul Hasanah Sitorus, Tiroy Sofyan H. Siregar Sofyan Husein Siregar Sonya Marunjung P.Hsb Sri Murtin Sufaidah, Siti Nur Sujianto Sujianto Sujianto Sujianto Sukendi Sukendi Sulistio, Hendra Tri Suparno . Suzila ' Syafrhani, Wan Nabila Syafrizal Syafrizal Syafruddin Nasution Syahril Nedi Syamsiar, Syamsiar Syawfy Luthfiandra Taat Mujaid Arifin Tania Hersa Tanjung, Lismawati Tengku Mutia Smita Dwivayana Thamrin Thamrin Thamrin Thamrin Thamrin Thamrin Thamrin Thamrin Thamrin Tri Lestari Tri Prartono Triatama, Putri Zulfa Trisla Warningsih Uswatun Hasanah Vichi Apridianti Vivien Renata Wahyu Novra Wanda Wahyudi Wahyudi Wanda Syahrian Wardana, Rangga Wulan Cempaka Sari.S Yahya Benardus Sihombing Yanti, D.H. Yehezkiel, Rizki Dwi Yeli Hartuti Yetti Elfina Yohanna Siagian Yona, Fitria Mai Yosua Afrianus P Yulinda, Emelda Yusni Ikhwan Siregar Zain, Rahmita Firda Zakaria Kaharudin Zaki, Raihan Zientika, Zientika Zulhendri Zulhendri Zulkifli ' Zulkifli Zulkifli Zulkifli Zulkifli

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