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All Journal Indonesian Journal of Geography Jurnal Natur Indonesia Jurnal Perikanan dan Kelautan Berkala Perikanan Terubuk Jurnal Ilmu Lingkungan JIP (Jurnal Industri dan Perkotaan) Jurnal Kajian Lingkungan Jurnal Ilmu Perairan (Aquatic Science) Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan JURNAL ENGGANO Dinamisia: Jurnal Pengabdian Kepada Masyarakat Riau Journal of Empowerment Asian Journal of Aquatic Sciences Jurnal Pengabdian Masyarakat Teknik International Journal of Electrical, Energy and Power System Engineering (IJEEPSE) Unri Conference Series: Community Engagement ECOTONE SIMBIOSA Jurnal Zona Journal of Coastal and Ocean Sciences Journal of Rural and Urban Community Empowerment Kutubkhanah Jurnal Penelitian Sosial Keagamaan SEHATI: Jurnal Kesehatan Dinamika Lingkungan Indonesia Journal of Community Engagement Research for Sustainability Bhakti Nagori (Jurnal Pengabdian kepada Masyarakat) INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY Indonesia Journal of Social Responsibility Review (IJSRR) Jurnal Perikanan dan Kelautan Jurnal Natur Indonesia

Aras Mulyadi

Universitas Riau

Author-ID : 324505

Religion Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Immunology & microbiology Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Medicine & Pharmacology Nursing Physics Public Health Social Sciences Transportation Other

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Pengembangan ternak Ruminansia terintegrasi di Desa Koto Simandolak Kabupaten Kuantan Singingi: Pemanfaatan kotoran ternak untuk biogas dan pupuk organik Djaimi Bakce; Aras Mulyadi; Almasdi Syahza; Zulfan Saam; Adiwirman Adiwirman; Evy Rossi
Riau Journal of Empowerment Vol 4 No 3 (2021)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/raje.4.3.185-190

Kuantan Singingi Regency is one of the ruminant-producing districts in Riau Province. Koto Simandolak Village, located in Benai District, Kuantan Singingi Regency, the majority of the people work as farmers. Generally, farmers in Koto Simandolak Village cultivate livestock traditionally, namely by releasing them to the wild. This condition causes several problems including livestock manure, pollution of the village environment, and conflicts with residents. This problem can be solved if the farmer wants to keep the cattle. By holding cattle, the manure will be collected directly in the cage. Animal manure can be processed and used in biogas and organic fertilizer. The Research and Community Services Team of Universitas Riau saw the potential for utilizing livestock manure waste in Koto Simandolak Village. The Team conducts training and assistance in the installation of biogas reactors as well as training and mentoring in the biogas production process using livestock manure. Another output of biogas production is organic fertilizer. The ultimate goal of this service activity is to increase the income of the target community, namely through increasing livestock production, biogas production, and organic fertilizer production.

Pengolahan kelapa jelly dan manisan kelapa di Desa Binaan Tanjung Alai Kecamatan XIII Koto Kampar Provinsi Riau Aras Mulyadi; Dessy Yoswaty; Iesje Lukistyowati; T Ersti Yulika Sari; Niken Ayu Pamukas; Adelina Adelina
Unri Conference Series: Community Engagement Vol 1 (2019): Seminar Nasional Pemberdayaan Masyarakat
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/unricsce.1.267-276

Tanjung Alai Village is in The XIII District of Koto Kampar Riau Province, downstream of The Gulamo River with The Kampar River. The local government of Kampar Regency has develop tourism potential in Tanjung Alai Village. For example it has traction in the form of beautiful natural scenery, the distance from the city of Pekanbaru to Tanjung Alai Village about 2 hours (21 km), the catchment area, the historical site of the Muara Takus Temple, Puncak Pukatan as a climbing and Pulo Simo waterfall area. Tanjung Alai Village too has potential as rubber, oil palm, gambier, chocolate and coconut plantations. Coconut palm has opportunities with high economic value, utilized by community to diversify coconut processed products and support industrial products food preparations. The purpose of the activity is to make Tanjung Alai Village a target village from LPPM University of Riau by doing coconut jelly and candied coconut processing activities. Benefits of activities that can be used as an alternative effort to improve the welfare of the community and entrepreneurship. The method used is a combination of counseling and the practice of using coconut jelly and candied coconut. Strategic target audience in the activities of the target villages there were 25 PKK mothers. The evaluation results of the participants perception stated that it was very agreeable (59,2%) held this activity, received and practiced the training of coconut jelly and candied coconut as an opportunity for alternative income for the community. Economic analysis of processed coconut jelly amounted to IDR. 4.653.600/month and candied coconut is IDR. 2.248.800/month.

Diversity of Trees Species in The Natural Ecosystems of Development Area for Eco-Forest Green Open Space at Pangkalan Kerinci City, Indonesia Nawari Nawari; Aras Mulyadi; Rasoel Hamidy; Tengku Nurhidayah
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.87-95

Eco-Forest green open space (GOS) development is one of the ways to achieve sustainable urban development in Pangkalan Kerinci City. The information of structure and composition of the natural tree species growing in the green open space was required as a basis to formulating future rehabilitation strategy. This study aims to analysed the diversity and composition of tree species at the development area of Eco-Forest GOS. The data used in this study was primary data of tree species, dbh, frequency and density. Data collected by field observation using a systematic sampling method. Data analysis was carried out by estimate the diversity parameters including diversity index, richness, and evenness. Species composition assessed by important value index. Spatial interpolation of the diversity index and tree density was carried out by spline interpolation method using ArcGIS 10.7 software. The analysis result shows that the diversity of natural tree species was decreases by increasing the live cycle of tree. There are three dominant species in this location, which Ilexcymosa, Litsea firma, and Stemonurus secundiflorus. Spatial analysis shows that 51.5% of the green space area classified into low diversity and density category, while 13.2% was classified as high diversity and density class. Efforts to achieved the successful of GOS management by use the information of vegetation’s structure and composition as one of the inputs to develop the regeneration and rehabilitation system. At the same time, it is necessary to increases the dimensions of human, institutional and financial management that supports biodiversity conservation in the green open space

Pemasangan Alat Penyulingan Serai Wangi untuk Petani di Desa Siabu, Salo, Kampar Azriyenni; Aras Mulyadi; Ikma Zurani; Andewi Rokhmawati; Edi Susilo
Dinamisia : Jurnal Pengabdian Kepada Masyarakat Vol. 5 No. 5 (2021): Dinamisia: Jurnal Pengabdian Kepada Masyarakat
Publisher : Universitas Lancang Kuning

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31849/dinamisia.v5i5.5643

Serai wangi adalah alternatif dari sekian bahan baku untuk menghasilkan minyak atsiri. Minyak atsiri dapat berfungsi sebagai campuran kosmetik, aromaterapi, obat-obatan, suplemen, dan lainnya. Kegiatan pengabdian masyarakat ini bertujuan untuk menerapkan inovasi alat penyulingan minyak atsiri dalam bentuk produk teknologi tepat guna untuk meningkatkan hasil produksi minyak atsiri bagi petani di Desa Siabu, Kecamatan Salo, Kabupaten Kampar, Provinsi Riau. Masyarakat juga dapat mengetahui dan memahami, serta meningkatkan mutu rendemen agar kualitas minyak menjadi lebih baik sekaligus bemanfaat bagi masyarakat. Metode pelaksanaan terdiri dari survei lapangan, analisis situasi, rancangan alat, pemasangan alat, dan pemantauan alat pengumpulan data, dan analisis sesuai dengan teori-teori yang dikutip untuk memperoleh informasi. Dalam penyulingan minyak serai wangi terdiri dari tiga cara yakni; penyulingan menggunakan sistem rebusan, penyulingan menggunakan air dan uap, penyulingan menggunakan uap langsung. Hasil penyulingan serai wangi menjadi minyak atsiri dengan kapasitas 130kg per-ketel dapat menghasilkan minyak atsiri 1,3 liter

DISTILASI DAN PENGUJIAN KARAKTERISTIK MINYAK ATSIRI HASIL PENYULINGAN SERAI WANGI DI DESA SIABU, SALO, KAMPAR Azriyenni Azriyenni; Aras Mulyadi; Yeni Kusumawaty; Yelmida A.; Ikhma Zurani
Jurnal Pengabdian Masyarakat Teknik Vol 4, No 2 (2022): Jurnal Pengabdian Masyarakat Teknik (JPMT)
Publisher : Fakultas Teknik Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jpmt.4.2.82-88

Salah satu tanaman penghasil minyak atsiri dan telah dibudidayakan di Desa Siabu, Kecamatan Salo, Kabupaten Kampar, Provinsi Riau adalah tanaman serai wangi. Petani serai wangi melakukan penyulingan langsung untuk dapat menghasilkan minyak atsiri yang telah dijalankan sekitar dua tahun. Kegiatan pengabdian masyarakat ini bertujuan untuk menerapkan hasil inovasi dalam bentuk teknologi tepat guna (TTG) alat penyulingan minyak serai wangi. Tujuan kegiatan pengabdian adalah sebagai berikut: 1. Memantau sistem kerja alat penyulingan sehingga dihasilkan produksi minyak serai wangi yang baik; 2. Menangani manajemen hasil produksi minyak serai wangi dari alat penyulingan dan 3. Mengevaluasi kualitas minyak serai wangi yang dihasilkan sehingga dapat menembus pasar. Pelaksanaan kegiatan pengabdian dilakukan dengan melakukan sosialisasi teknik penyulingan, distilasi minyak atsiri dari serai wangi, dan pengujian karakteristik minyak atsiri dari serai wangi. Berdasarkan hasil uji dan pengamatan, minyak atsiri yang dihasilkan memiliki karakteristik fisik dan kimia yang telah sesuai dengan yang dipersyaratkan. Karakteristik minyak atsiri serai wangi menghasilkan minyak atsiri dengan berat jenis 0,86 mg/L, viscositas pada suhu 45oC sebesar 2,41x10-6 N.S/ m2, angka asam lemak bebas (ALB) 1,1% dan kadar air 3,1%.

ANALISIS KOMPOSISI DIATOM EPIPELIK SEBAGAI BIOINDIKATOR PENCEMARAN PERAIRAN PANTAI KOTA DUMAI PROVINSI RIAU Zahrotul Aini; Aras Mulyadi; Bintal Amin
Kutubkhanah Vol 18, No 1 (2015): Januari - Juni
Publisher : Lembaga penelitian dan pengabdian kepada masyrakat

This study was conducted in August 2014 with a survey method. Five sampling stations was chosen by taking into account differences in the surrounding anthropogenic activities. Sampling for epipelic diatoms in sediment was performed by using spatula on 5x5 cm subplots in sediment samples taken by ekman grab. Water quality parameters measured at each station are the current speed, temperature, salinity, pH, BOD, nitrate, phosphate, organic matter and sediment fractions. The results of the study found as many as 16 species of epipelic diatoms. Melosira sp., Navicula sp. and Nitzshia sp. are the dominant species and the possibilities to be considered as an indicator for water pollution status of Dumai coastal waters. Average abundance of epipelic diatoms ranged between 18.67 ind/cm2 to 67.33 ind/cm2. Epipelic diatom diversity index ranged from 1.667 to 1.960; the dominance index ranged from 0,288 to 0,392 while theuniformityindexranged from 0,891 to 0,951. The level of water pollution based on the diversity index indicated that Dumai coastal waters is catagorized as low to moderately polluted waters

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.

Analisis Spasial dan Temporal Sebaran Suhu Permukaan Laut di Perairan Sumatera Barat Alfajri Alfajri; Mubarak Mubarak; Aras Mulyadi
Dinamika Lingkungan Indonesia Vol 4, No 1 (2017)
Publisher : Universitas Riau

This study was conducted on March-April 2016 in West Sumatra Waters. This study aimed to know distribution and sea surface temperature fluctuation daily and monthly in West Sumatra Waters and to know the factor that influences distribution and fluctuation of sea surface temperature in West Sumatra Waters. Sea surface temperature has taken from 3 stations which: Pariaman Waters, Padang-Pariaman Regency Waters and Bungus Waters, Padang. The result of daily data sea surface temperature by Aqua-Modis from 15 February, 20 February, 25 February, 2 March, 7 March and 12 March 2016 On West Sumatra Waters showed that the highest sea surface temperature was 34,54°C occured on 15 February and the lowest was 27,41°C on 12 March 2016. Average of monthly sea surface temperature on April 2015-March 2016 was about 27,07-34,98°C. The highest sea surface temperature occured on February and March 2016 and the lowest occurred on April and October 2015. Based on observation of monthly sea surface temperature knowed that sea surface temperature on western season increased and sea surface temperature and eastern season decreased. Observation showed that sea surface temperature influence by water mass moved because muson wind. Water mass moved impact to distribution of sea surface temperature on waters. The high or low of sea surface temperature in waters estimated because of sunlight intensity and rain on waters. As high the sunlight intensity to the waters so sea surface temperature on waters will increased and as high the rain so the sea surface temperature will decreased. El Nino phenomenon that occurred on February and March 2016 because sea surface temperature on that month was increased.

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.

Co-Authors ', Agusriadi ', Arfitrah ', Zulkifli AA Sudharmawan, AA Adelina Adelina Adhistie Indah Sari Adiwirman Adiwirman Adiwirman Adiwirman, Adiwirman Adni, Nailul Afrizal Tanjung Agnesia, Yohana Agung Dhamar Syakti Agus Mandar, Agus Agusti, Dinda Roanna Albahri Albahri Alfajri Alfajri Alfajri, Alfajri Alfian Alfian Alfian Alfian Alka, M Abdi Almasdi Syahza Amanda, Yossie Aminuyati Anak Agung Istri Sri Wiadnyani Andewi Rokhmawati Andi Darlianto Andi Yusapri Andreas Situmorang Annisa Al-Qhoshashi Antoni Antoni Antonius ' Anwar, Sagita Apriyani Apriyani Arief Rachman. B Audilla Pardova Autika, Yotta Ayu Ade Fatma Dewi Sirait Ayu Septiani Ayu Septiani Azmiada, Zela Azriyenni Azhari Zakri Bahruddin Bayu Putra U Irawan Bintal Amin Bintang Rapshodio Tane Budijono, Budijono Burhan Marbun Chitra Hermawan Chitra Hermawan Dandi Arianto Pelly Danil Rama Putra Darmawati Darmawati Daryono Daryono David M Haryanto David M Haryanto David Raymond Sianturi Deden Sutrisco Nopria Dedi Afandi Denny Mulianto Desi Purnamasari Taher Desmarina, Y. Despela, Despela Dessy Yoswaty Dessy Yoswaty Dessy Yoswaty Djaimi Bakce Djaimi Bakce Doni Apdillah Dyah Endah Astuti Nasution Edi Susilo Eff, Irwan Effendi Sianipar Efriyeldi, Efriyeldi Ela Fitriana Elda Nazriati Elfis Suanto Elizal, Elizal Emirhadi Suganda Endro Siswanto Endro Siswoko Eyka Syahputra Fadhil, Mohd. Isfan Fajriani Ananda Fakhri Fakhri Fauzi, Manyuk Fenti Rozanda Feri Handoyo Pardede Feri Handoyo Pardede Fernando, Muhammad Zebi Ferry Fatnanta Fia Novianty Fiki Harjuni Filio Hara, Filio Firzal, Yohannes Fitriani, Nely Fuadi, Indra Ginting, T.B. Gusfi, Melly Hadinoto Hadinoto Harahap, Anugerah Ramadhan Harahap, Anugrah Ramadhan Hardianto Andita Hardiko, Syefri Haryanto, David M Hasan, Masyhuda Hasbi Tawa Hasyim, Ardhan Fadhlani Hendra Taufik Hendro Ekwarso Heriansyah Pasaribu Hoki kurniawan Hutomo, Ragil Tribhakti Iesje Lukistyowati Ikhma Zurani Ikma Zurani Ilham Ilahi Imam Deisy Mustiono Imam Suprayogi Imran , Imran Imran Imran Inka Wahyuni Irvina Nurachmi Irwan Effendi Ismandianto Jadi Prasmadi Jailani Jailani Januardi, Deki Joko Samiaji Joleha, Joleha Judika Nursiani Sipahutar Jumahat Siregar, Jumahat Karnila, Rahman Karnila Khairul Mukmin Lubis Khairul Mukmin Lubis Khairul Rizal Lee, Seung Hun Lubis, Abdillah Lydia S Marpaung M Fadhilah Zaim Umam Manda Putra, Ridwan Matgus Riadi Mikael H Dolok Saribu Miswadi Miswadi Mubarak ' Mubarak Mubarak Mubarak Mubarak Muhammad Abdul Hafiz Muhammad Isnan Alindra Muhammad Rafsan Zain Muhammad Sofyan Muhammad Yevizal Muhammad Zebi Fernando Muhammad Zebi Fernando Muhammad, Andi Syahroni Musrifin Galib Musrifin Ghalib Musrifin Musrifin Nawari Nawari Nawari, Nawari Nenny Indrawaty Nico Rahmadany Niken Ayu Pamukas Ningrum, Indah Puspita Nita Cahyaning Nofrizal Nofrizal Nofrizal Nofrizal Nopriadi Nopriadi Nur Atikah Nurafni, Melia Nurdin Nurdin Nursyirwani, Nursyirwani Octaviaty, Windy Oktarina, Ayu Oliver J Hasibuan Pardede, Feri Pesta Martua Sirait Putra, Danil Putra, Danil Rama Rahmat Karnila Rahmita, R. Ramadhan, A.R Ramadhan, A.R. Ramadhan, Alif Ridho Rasoel Hamidy Reni Suryanita Revi Lasmita Rico Panjaitan Ridwan Manda Putra Rifaldi Rifaldi, Rifaldi Rifardi Rika Kurniawan Rinno Ferryno Risma Tambunan Rizal, Khairul Rizka Aprisanti Rizka Aprisanti Rizki, A. Rohul Mazidah Romie Jhonnerie Rony Setyawan Rossi, Evy Rozanda, Fenti Safitri, Nely Safridatul Audah Salmiah Safitri Sari, D.J. Setyo S. Moersidik Sinaga, Andri Decshana Siregar, Rifa Ghina Aulia Siringoringo, Frido S. Siti Fatonah Sitorus, Kornelius K Sofyan H Siregar Sofyan H Siregar Sofyan H. Siregar Sofyan Husein Siregar Sri Djuniati Sri Rezeki Suandy, Indra Suardi Tarumun Sukendi Sukendi Suryani Suryani Susilawati ' Susilo, Hendri Sutrisna Sutrisna Suwondo Suwondo Syafri Boy Syafri Harto Syafruddin Nasution Syahrial Syahrial Syahril Nedi Syofian Hadi T. Ersti Yulika Sari Tane, Bintang Rapshodio Tanty Juliawati Tawa, Hasbi Tengku Nurhidayah Thamrin ' Thamrin Thamrin Thamrin Thamrin Thamrin Thamrin Thamrin Thamrin Thamrin Thamrin Trinop Sagiarti TRINOP SAGIARTI, TRINOP Utami, Astri Hijri Verid Aria Susammesin Victor Simanungkalit Viktor Amrifo Vivi Oktaviani Vivi Oktaviani Wahyu Novra Wanda Wahyu Purwanto Wahyudi Wahyudi Wawan Widia Astin Windarti Windarti Wiwi Hardayati Yanti, D.H. Yelmida Azis Yeni Kusumawaty Yeni Sustriani Yetti Elfina Yossie Amanda Yossie Amanda Yoswaty, Des Yulina Sari Yulis Hamidy Yusni Ikhwan Siregar Yusni Ikhwan Siregar Zahrotul Aini Zahrotul Aini, Zahrotul Zahtamal Zahtamal Zientika, Zientika Zulfan Saam Zulfan Saam Zulhendri Zulhendri Zulkarnaini Zulkarnaini Zulkifli Zulkifli Zulkifli Zulkifli

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