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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 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
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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Journal : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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The Abundance and the Distribution Pattern of Sucker Snail (Cerithidea quadrata) in Mangrove Forest of Untut Island of Teluk Meranti District of Pelalawan Regency of Riau Province Suzila '; Efriyeldi '; Irvina Nurrachmi
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 3, No 1 (2016): Wisuda Februari Tahun 2016
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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Abstract

The research was conducted in October 2015. The samples were taken in mangrove forest of Untut Island of Teluk Meranti District of Pelalawan Regency of Riau Province. The sample was analyzed in the Laboratory of Marine Chemistry and Laboratory of Marine Biology of Faculty of Fisheries and Marine Sciences, University of Riau. The result showed the average of sucker snail (C. quadrata) in each station ranged from 1-6.22 ind/m2. The abundance of C. quadrata among station I, station II and III was not different significanty (p<0.01) while in station II and III was different significanty (p>0.05). The most dominant individual size of C. quadrata was found in station 3 (2-3.99 cm) which comprising of 64 individuals. The distribution pattern of C. quadrata in each station in the research area was in the from of groups.Keywords: Abudance, distribution of gastropods, mangrove forest, Untut Island.
Abundance distribution gastropods telescopium telescopium Mangrove ecosystem in river estuary dumai Bonawi Sihombing; Syafruddin Nasution; Efriyeldi &#039;
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 1, No 2 (2014): Wisuda Oktober Tahun 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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This study was conducted in December 2013 at Dumai river estuary. Thestudy aims were to determine the abundance distribution of mangrove snail (T.telescopium) and correlation between abundance and sediment organic content.The method used was a survey method. Samples of snail population and sedimentwere collected by a single visit during low tide. Location of study was dividedinto 3 stations. Station I located inside the conservation area, station II waslocated close to shipyard, while station III laid near by a residential community.The analysis carried out in Marine Biologi Laboratory of Riau University.The results of the study show that the highest abundance of snail was atthe station III (6,55 ind/m2) and the lowest was at the station I (1,99 ind/m2).Statistical analysis (Anova) show that there was no significant differentabundance among those stations. Regression analysis show that the relationshipbetween the abundance of T. telescopium and organic sediment content wasnegatively correlated (r = 0,453).Keywords: Telescopium telescopium, abundance, organic Sediment, Dumai Riverestuary
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 &#039;
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).
COMMUNITY STRUCTURE OF MANGROVE VEGETATION IN MENGKAPAN VILLAGE SUNGAI APIT DISTRICT OF SIAK Fia Novianty; Aras Mulyadi; Efriyeldi &#039;
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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Abstract

The research was conducted in January-February 2017 in Mengkapan Village, Sungai Apit, District of Siak. The purpose of study was to determine the structure community of mangrove in Mengkapan Village. The method used in the research was survey method. The stations were determined based on human activity. Each station was determined in three transects set along 100 m from the sea toward the land. The number of plots was 27, with the size of 10 x 10 m2 for tree criteria, 5 x 5m2 for sapling criteria, and 2 x 2m2 for the seedlings criteria. The results of this study found 10 species of mangrove. The vegetation was dominated by species of R. apiculata with value 155.71%. The status of mangrove vegetation in Mengkapan Village, Sungai Apit was in bad condition, with the average density of 607.40 ind/ha.Keywords: Mangrove, Structure community, Village Mengkapan
THE RELATHIONSHIP OF NITRATE, PHOSPHATE AND SILICATE CONCENTRATION WITH PLANKTONIC DIATOMS ABUNDANCE IN TELUK BUO WATERS BUNGUS TELUK KABUNG DISTRICT PADANGCITY WEST SUMATERA Syawfy Luthfiandra; 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                The aims of study was to analyze the relationship of planktonic diatoms  abundance with the concentration of nitrate, phosphate and silicate from the Teluk Buoof waters. Placement of sampling location using purposive sampling that was by dividing the research location into four station with 3 point of sampling at each station in Teluk Buo waters which serve as research location. Field sampling was conducted in March 2018 and the observation and identification of planktonic diatoms were conducted in Marine Biology Laboratory of the Fisheries and Marine Faculty of Riau University. The results showed that nitrate concentration in Teluk Buo waters ranged from 0.0125 - 0.0333 mg/l, phosphate concentration ranged from 0.0413 - 0.0841 mg/l,and  silicate concentrations ranged from 0.0228 - 0.0354 mg/l. Nine species of plantonic diatoms were finded in Teluk Buo of waterswasBiddulphia sp, Isthimisp, Coscinodiscus sp, Flagilaria sp, Nitzschia sp, Navicula sp, Aulacoseira sp, Bacillaria sp, dan Cymbella sp. The average abundance of diatoms in these waters 181-250 ind/l. Regression test results, nitrate correlation value with diatomic abundance shows a relationshipwas positive, while the value of phosphate and silicate correlation with diatomic abundance shows a relationshipwas negative.           Key word : Planktonic Diatoms, Nitrate, Phosphate and Silicate, Teluk Buo Waters
The Density and Sex Ratio of Cockle Shell (Anadara granosa) in Coastal Water of Panipahan, Pasir Limau Kapas District Hadi Sastranegara; Efriyeldi &#039;; Yusni Ikhwan Siregar
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 3, No 1 (2016): Wisuda Februari Tahun 2016
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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Abstract

A study on the density, sex ratio of cockles (A. granosa) was conducted in Panipahan coastal mud-flat during May to August 2015. Two zones of 100 m and 250 m from coast line were established. Each sampling zone were divided into 5 plots of 1 m2. Apparently average density of cockles ranged from 25.9 - 28.4 ind/m2. There was no significant differently of cockles density between zones (p>0.05). Sex-ratio male/female appeared 1:1.27.Keyword : Density, Sex Ratio, Anadara granosa and Panipahan
The Relationships Between Density of Mangroves and Sediment Organic Content with Macroepifauna Abundance in Anak Setatah Village, District of Meranti Archipelago Erick Palatema; Bintal Amin; Efriyeldi &#039;
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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Abstract

The research was conducted in December 2015 in Anak Setatah Village, District of Meranti Archipelago. This research aimed to analyze the density of mangrove, sediment organic content, abundance of macroepifauna, relationships between density of mangrove and organic content in sediment with macroepifauna abundance. Mangrove density measurements was done using 10 x 10 m² observation plots, whilst sampling of macroepifauna using 5 x 5 m² plot with two replication at each plot. The results of the research showed that water quality parameters measured were still in the range of water quality criteria for marine organisms. Density of mangrove in Station 1 was 2,283.33 ind/ha and in Station 2 was 1,283.33 ind/ha. The sediment organic content in Station 1 was 15.10 % and Station 2 was 15.50 %. The macroepifauna abundance in Station 1 was 4,600 ind/ha and Station 2 was 1,200 ind/ha. Non significant posititive correlation between sediment organic content and macroepifauna abundance was found which shown by regression equation in Station 1 y = 2966,8 + 72,851x, R2 = 0,002, r = 0.04 and Station 2 y = 483.1 + 20.435x, R2 = 0.0007, r = 0.026. Non significant postitive correlation between mangrove density and macroepifauna abundance was also found and shown by regression equation y = 1266.5 + 0.3081x, R² = 0.105 r = 0.324 (Station 1) and y = 503.27 + 0.2312x, R2 = 0.0108, r = 0.103 (Station 2).Key Word: mangrove, organic, sediment, macroepifauna
ANALYSIS OF BIOMASS AND CARBON STOCK ON MANGROVE FOREST ECOSYTEM THE TELUK PULAI, VILLAGE OF PASIR LIMAU KAPAS, ROKAN HILIR RIAU PROVINCE Muhammad Syarif; Irvina Nurrachmi; Efriyeldi &#039;
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 4, No 1 (2017): Wisuda Februari Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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This research was conducted in April 2016. Sampling was conducted on mangrove forest ecosystems in Teluk Pulai Pasir Limau Kapas Rokan Hilir in Riau Province. The purpose of the research is to analyze the content of carbon in mangrove forest ecosystems as well as to determine the ability to these ecosystems to store carbon per unit area of mangrove forest area in the village of Teluk Pulai. The method used in this study is a survey method, which observation and sampling on the field and do the samples analyzed in the laboratory. Based on the average yield of total biomass of mangrove highest at station 1 is 198.58 ton/ha while the lowest was at station 3 is 68.80 tons/ha. The average yield of total carbon stocks are highest in station 1 with a value of 300.31 tons/ha while the total carbon stock was lowest for the station 3 with a value of 222.74 tons/ha.Keyword: Teluk Pulai, Mangrove, Biomass, Carbon
ABUNDANCE AND DISTRIBUTION PATTERNS OF GASTROPODA ON MANGROVE FORESTIN THE AREA OF DESA ANAK SETATAHDISTRICTS RANGSANG BARAT KEPUALAUAN MERANTI REGENCY RIAU PROVINCE Inka Wahyuni; Aras Mulyadi; Efriyeldi Efriyeldi
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 2 Juli s/d Desember 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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ABSTRACT             This research was conducted in April 2019 with the aim of finding out the abundance and distribution patterns of gastropods in the mangroves of Anak Setatah Village.Determination of the sampling location is done by purposive sampling, which is to determine the sampling point intentionally based on certain objectives.Sampling was carried out in the mangrove area of Anak Setatah Village with different mangrove forest conditions and gastropod identification was carried out at the Marine Biology Laboratory, Faculty of Fisheries and Maritime Affairs, Riau University.The results showed that the total number of species found were 8 gastropod species.In the mangrove mono species 4 gastropod species were found and the mangrove multi species species were found 8 gastropod species, while the highest gastropod abundance was found in the mangrove mono species at observation station IV, which was 23.16 ind/m2 and the lowest was in the multi species mangrove area. at observation station 1 which is 5.36 ind/m2. Key word :Abundance, Distribution Patterns, Anak Setatah Village
THE CONTRIBUTION OF NUTRIENT BASED ON THE MANGROVE TYPES IN PANGKALAN SESAI REGION DUMAI CITY Novia Suci Yanti; Bintal Amin; Efriyeldi &#039;
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 2, No 1 (2015): Wisuda Februari Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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ABSTRACTThis study was conducted in April-May 2014 in an area of mangrove forest in Pangkalan Sesai Region Dumai city. The purpose of this study was to determine the differences in litter decomposition rates of different mangrove species at several locations in Pangkalan Sesai Region and to understand the contribution of nutrients (N and P) production of mangrove litter on different type of mangrove. The method used was the method of surveying, sampling and testing of mangrove litter decomposition rates in the mangrove forest in Pangkalan Sesai Region. Nitrate and Phosphate sample analysis carried out in the Laboratory Marine Science, Faculty of Fisheries and Marine Sciences University of Riau. The highest rate of litter decomposition found in Avicennia sp at Station I which took place on the 30th day was the decomposition of 6.67 grams, with a percentage of 2.22% per day. Depreciation lowest leaves are exist at Station III is the species of Rhizophora sp 6.876gr which lost weight at 3.13 grams. Average production potential of nutrients (N and P) based on the type of mangrove in the entire station is nutrients nitrate in Avicennia sp 0.0002 g-N/m2/day, Xylocarpus sp 0.0002 g-N/m2/day, and Rhizophora sp 0.0001 g-N/m2/day. For nutrient phosphate in Avicennia sp 0.0010 g-P/m2/day, Xylocarpus sp 0.0052 g-P/m2/day, Rhizophora sp 0.0054 g-P /m2/day.Key Word: Mangrove, Litter, The rate of dekompostion, Nutrient, Pangkalan Sesai.
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 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 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 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 &#039; 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 Fauzi 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 Noel GM Situmorang Novia Suci Yanti Novri Ditama Syafni Nuning Homsatun Nurafni, Melia Nuri Aslami 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 &#039; Syafrhani, Wan Nabila Syafrizal Syafrizal Syafruddin Nasution Syahril Nedi Syawfy Luthfiandra Taat Mujaid Arifin Tania Hersa Tanjung, Lismawati Tengku Mutia Smita Dwivayana 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 &#039; Zulkifli Zulkifli Zulkifli Zulkifli