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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 Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) 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 Journal of Innovative and Creativity 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 Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Physics Public Health Social Sciences Other

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Strategi pengembangan ekowisata mangrove Bandar Bakau Dumai, Riau Aras Mulyadi; Efriyeldi Efriyeldi; Burhan Marbun
Dinamika Lingkungan Indonesia Vol 8, No 1 (2021)
Publisher : Universitas Riau

Bandar Bakau Mangrove Ecotourism is one of the most attractive natural tourist destinations in Dumai City. As a reference for future development, this study aims to analyze the mangrove ecotourism development strategy of Bandar Bakau Dumai. Surveys to collect primary data have been carried out in the field and on managers of Bandar Bakau Mangrove Ecotourism in June - November 2020. Meanwhile, secondary data were collected from the Dumai City Government and related literature. The data collected were analyzed descriptively, and to formulate a development strategy carried out using a SWOT analysis approach (Strengths, Weaknesses, Opportunities, Threats) from the identification of Internal factors (IFAS) and external factors (EFAS). To make mangrove ecotourism in Bandar Bakau Dumai a natural tourism place that can compete in the future, 4 (four) development strategies have been formulated, namely: 1) Development of Supporting and Supporting Facilities for Mangrove Ecotourism in Bandar Bakau Dumai, 2) Development of Mangrove Ecotourism Products in Bandar Bakau Dumai, 3) Strengthening the Role of Stakeholders in the Development of Mangrove Ecotourism in Bandar Bakau Dumai, and 4) Development of Conservation and Environmental Mitigation of Mangrove Ecotourism in Bandar Bakau Dumai.

Tiga dekade laju perubahan garis pantai di Kota Dumai Aras Mulyadi; Rasoel Hamidy; Musrifin Musrifin; Efriyeldi Efriyeldi; Romie Jhonnerie
Dinamika Lingkungan Indonesia Vol 9, No 1 (2022)
Publisher : Universitas Riau

Mapping of coastline changes helps in coastal development and monitoring. The city of Dumai, on the east coast of Riau Province, has undergone significant and radical changes caused by the intervention of humans and nature over the past three decades. This study mapped and measured the rate of change of the coastline of Dumai City for 30 years. The Landsat (TM, and OLI) image series, 1990, 1999, 2008, and 2020 became a data source to generate coastlines through on-screen digitization techniques, then to study the temporal behavior of coastlines using the Digital Shoreline Analysis System (DSAS) and geographic information systems to describe the spatial and temporal variations of coastlines. The results showed that the coastline length during the observation ranged from 123,14 to 125,23 km, while the average accretion rate was 1.17 meters per year while the average abrasion rate was 2.04 meters per year. Those rates of change affected coastline expanded to the sea for 60,82 hectares and eroded 760,20 hectares coastline to the land.

Pertumbuhan Api-Api (Avicennia alba) dan Kelimpahan Epifauna Bentik di Kawasan Rehabilitasi Mangrove Desa Kedaburapat Kabupaten Kepulauan Meranti Efriyeldi Efriyeldi; Aras Mulyadi; Joko Samiaji
Dinamika Lingkungan Indonesia Vol 8, No 2 (2021)
Publisher : Universitas Riau

The research was conducted in July - October 2020. Collection of data A. alba growth and abundance of benthic epifauna was carried out in the mangrove rehabilitated area of Kedabupat village, Kepulauan Meranti Regency. The aims of this study was to analyze the growth (stems height and diameter) of the mangrove A. alba species as a result of rehabilitation and abundance of benthic epifauna in the area. The method used in this research was a survey method, where data was obtained by directly to the research location. The data collected was data on the height and diameter of A. alba stems, density of macro epifauna species, and water quality in the field, then followed by analysis of water and sediment samples in the laboratory. The results showed that the average increace in height of the stem by zone was 6.45-12.93 cm/month, meanwhile the average value of the increase in stem diameter by zone is 1.53-1.85 mm/month. There were 13 epifauna benthic species from 2 classes namely Gastropod and Malacostraca from mangrove rehabilitation. Gastropod class that was Littoraria melanostoma, Nerita balteata and Sphaerassiminea miniata; from the malacostraca class that was Uca coarctata, Metopograpsus latifrons, Ceonobita cavipes, and Clibanarius longitarsus. Benthic epifauna abundance values average ranged from 31.33-52.22 ind/m2.

Analisis densitas Zooxanthella pada karang Acropora sp di Perairan Pulau Talam Tapanuli Tengah Provinsi Sumatera Utara Novri Ditama Syafni; Thamrin Thamrin; Efriyeldi Efriyeldi
Jurnal Zona Vol 6, No 2 (2022)
Publisher : Pelantar Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52364/zona.v6i2.62

Coral reefs are a unique ecosystem of tropical waters that have physical function as a beach protector with its nature that can reduce the energy of waves moving towards the coast. Coral reef ecosystems are a good places for spawning, nurturing and food sources for fish. The aim of this research was to determine the density of zooxanthella on coral Acropora sp based on different depths. The method that used in this research was a survey method by taking coral samples using purposive sampling technique, then the samples were analyzed and the data was discussed descriptively at the Marine Biology Laboratory, Faculty of Fisheries and Marine, Riau University. The results of this research on the waters of Talam Island obtained a brightness up to 100% of depth, a current velocity was 0.05–0.10 m/s, temperature ranging from 30-32 0C, salinity of 34 o/oo and pH ranging from 7.2–7.6. The corals that used as research objects for zooxanthella density were taken at a depth of 3 m, 5 m, and 7 m, namely the coral Acropora sp. The results showed that the average zooxanthella density on Acropora sp coral at a depth of 3 meters was 6.35x106 cells/cm2, a depth of 5 meters was 2.63x106 cells/cm2, and 1.95x106 cells/cm2 at a depth of 7 meters. Based on observations, the density zooxanthella was decreased by increasing depth.

Peranan Mahasiswa Kukerta Universitas Riau 2022 dalam Peningkatan Potensi Warga Dusun IV Sumber Makmur pada Program Kampung Iklim (Proklim) Rangga Wardana; Nuning Homsatun; Siti Umiyatul Hasanah; Rizki Dwi Yezelkiel; Dianda Roanna Agusti; Dewi Alfiana; Putri Ayuni; Bonita Tiolina Exaudi; Elfind Laoli; Bagas Ariya Pambudi; Efriyeldi Efriyeldi
Journal of Rural and Urban Community Empowerment Vol. 4 No. 1 (2022): Oktober 2022
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jruce.4.1.23-31

Peningkatan industri berarti adanya peningkatan pemanfaatan sumber daya alam yang akan mempengaruhi alam. Oleh karena itu, Kementrian Lingkungan Hidup dan Kehutanan menciptakan suatu program yang berlingkup nasional yang disebut dengan Program Kampung Iklim (PROKLIM). Kegiatan penghijauan lingkungan juga dilakukan untuk menghindari kekeringan. Semua hal tersebut dilakukan masyarakat dengan tujuan untuk mengantisipasi dampak perubahan iklim. Adapun metode yang digunakan adalah metode kuantitatif dimana teknik pengumpulan data dilakukan melalui wawancara dan kuesioner. Berdasarkan hasil penelitian didapatkan bahwa implementasi mitigasi perubahan iklim masyarakat Suka Makmur yaitu, 70% dapat disimpulkan bahwa implementasi mitigasi perubahan iklim Desa Suka Makmur dikategorikan cukup baik. Penerapan kegiatan mitigasi Desa Suka Makmur sedang dalam tahap peningkatan.

DECOMPOSITION RATE OF LITTERFALL MANGROVE Rhizophora sp. AT SUNGAI BERSEJARAH MANGROVE AREA, KAYU ARA PERMAI VILLAGE, SUNGAI APIT DISTRICT, SIAK REGENCY, RIAU PROVINCE Tania Hersa; Efriyeldi Efriyeldi; Bintal Amin
Asian Journal of Aquatic Sciences Vol 5 No 2 (2022): August 2022
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ajoas.5.2.191-199

This research was carried out in February 2021 in the Historic River Mangrove Tourism Area, Kayu Ara Permai Village, Sungai Apit District, Siak Regency, Riau Province. This study aims to analyze the rate of decomposition of inter mangrove litter. The method used in this study is a survey method and the determination of the sampling location by purposive sampling. The rate of decomposition of mangrove leaf litter was carried out by placing 10 g of litter in a litter bag on the mangrove forest floor in three zones for 4 weeks and taken every week as a sample. The results showed that the water quality, namely the temperature ranged from 28-30 °C, salinity 30-31‰, and pH 6.1-6.4. The results of the calculation of the rate of decomposition of mangrove leaves obtained an average of 0.25–0.11 g/day. The results of the Anova test showed that the rate of decomposition of mangrove leaf litter was higher in zone 1, which is relatively always inundated by tides and is affected by sea waves.

Sosisalisasi dan Peningkatan Kapasitas Masyarakat Dalam Penyusunan Rencana Kelola dan Konservasi Hutan Mangrove Desa Buruk Bakul Kecamatan Bukit Batu, Bengkalis Yusni Ikhwan Siregar; Defri Yoza; Efriyeldi Efriyeldi
CANANG: Jurnal Pengabdian Masyarakat Vol 2, No 2 (2022)
Publisher : PELANTAR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52364/canang.v2i2.29

Scientists concern on environmental services of the tropical ecosystem increase in the last decade. As a part of blue ecosystem, mangrove forest plays an important role from prespective of ecological, physical and social concern. Scientists suggest that the ecosystem could enrole in mitigation and resilience of climate change. In contrary, degradation and land conversion rate of the ecosystem is alarming all over the world including in Bengkalis Regency. Therefore attempts to overcome the problem become important. Local people as a main stakeholder need to be aware of environmental service of mangrove in their own region. The objective of the study was to increase perception, capacity and participation local people on conservation efforts. During the extention the local participants were introduced with the practical knowledge and skill in that of small scale mangrove ecoturism business.The participants of total 35 persons, with background of farmer, fishermen, local leader, young leader, and of non-government organization “Sekat Bakau” of the Buruk Bakul were trained on ecological, economical and social benefit of mangrove ecosystem. Further, materials on sustainability of ecoturism principles based on ecological, social and economical benefit to the environment and society, were discussed in classroom. Inherently, ecoturism could empower people through microscale business, educate as people well as enhance participation of local people. The effectiveness of the extention were greatly well based on evaluation to the participants and showed a significant result in perception, participation. Apparently, the level of capacity and knowledge on ecoturism were categorized into very good (60%), good (30%) and fair (10%). Based on that, the extention were categorized success.

Predasi dan Kelulushidupan Xylocarpus granatum yang Disemaikan di Ekosistem Mangrove Stasiun Kelautan Dumai Efriyeldi Efriyeldi; Joko Samiaji
Jurnal Perikanan dan Kelautan Vol 11, No 2 (2006)
Publisher : Faculty of Fisheries and Marine, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.11.2.90-95

Marine Spatial Allocations of the Coastal and Small Islands Zoning Plan in West Sumatera Province Suparno, Suparno; Arlius, Arlius; Efriyeldi, Efriyeldi; Putra, Aprizon
Sumatra Journal of Disaster, Geography and Geography Education Vol 6 No 2 (2022): Sumatra Journal of Disaster, Geography and Geography Education (December Edition)
Publisher : Sumatra Journal of Disaster, Geography and Geography Education

The Coastal and Small Islands Zoning Plan (RZWP3K) is a plan that determines the direction of utilization of the resources of each planning unit is accompanied by the determination of the structure and spatial patterns in the planning regions. The purpose of this research is to analyze the marine spatial allocations and utilization arrangement of RZWP3K in West Sumatra Province. The research method used is the analysis of environmental suitability criteria is done through the procedures of Geographic Information System (GIS) in the form of overlap parameters biophysical of coastal/marine waters. Spatial utilization arrangements are based on the procedure for the preparation of the RZWP3K and the Minister of Marine and Fisheries regulations of the Republic of Indonesia (Permen KP) No. 23/2016. Results of the analysis of the RZWP3K in West Sumatra Province divided into 4 regions, i.e general utilization, conservation, certain national strategic, and cruise groove. General utilization (3,041,610, 20 ha) consist of tourism, port, capture fisheries, aquaculture, mangrove, industrial, public facility, and other utilization. Conservation (196,905.34 ha) consist of conservation of waters, coastal, and small islands. Certain national strategic regions (331,683.99 ha) consist of defence and security zones. RZWP3K are important documents of the Provincial Government in Indonesia as the basis for the business permit granting in waters (marine).

ANALYSIS OF ORGANIC MATTER CONTENT IN SEDIMENTS AND MACROZOOBENTHOS ABUNDANCE IN PAKNING RIVER WATERS, BENGKALIS REGENCY, RIAU PROVINCE M. Fadhol Dwigantara; Bintal Amin; Efriyeldi Efriyeldi
Asian Journal of Aquatic Sciences Vol 6 No 1 (2023): April 2023
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ajoas.6.1.68-75

This research was conducted in April 2021 to analyze organic matter content in the sediment and the abundance of macrozoobenthos. The purpose of this study was to analyze the content of organic matter in sediments and their relationship with the abundance of macrozoobenthos in the waters of the Pakning River, Bengkalis Regency, Riau Province. Sediment and macrozoobenthos samples were taken from the waters of the Pakning River, Bengkalis District, Riau Province. The method used in this research is a survey method. Sampling was determined using purposive sampling at four different stations. The results of this study indicate that the organic matter content of sediment in the waters of the Pakning River has a percentage of 6.73-12.76%. The highest organic matter content is at station 1 of 12.76% and the lowest organic matter content is at station 4 of 6.73%. The highest average abundance of macrozoobenthos was 19.26 ind/m2 at station 1 with the dominant species being Anadara granosa. Connection between organic sediment and abundance of macrozoobenthos has a linear regression equation y = 1.8442 +0.1662x with a coefficient (R2) of 0.1491 which means that the effect of organic matter in the waters of the Pakning River is 14.9% while 85.1% is influenced by other factors. The value of 0.38 indicates that the relationship between organic matter and the abundance of macrozoobenthos is, a moderate relationship

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 Bahruddin Batubara, Ummi Mardhiah Bintal Amin Bona Juandi Bonawi Sihombing Bonita Tiolina Exaudi Budijono, Budijono Burhan Marbun Cahyo, Bintang Dwi Clara Yolandika 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 Lie Othman Lieng, Lieng Lubis, Abdillah Lucky Syarif Lulu Mayna Nabilla 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 Pradini, Ulfa Rizki 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 Rahayunigtyas, Putri 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, Rafly Fadiansyah 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 . Suwondo Suwondo 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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