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All Journal Jurnal Gizi dan Pangan Jurnal Energi Dan Manufaktur Jurna lAntropologi Indonesia Agrikultura Proceedings of Annual International Conference Syiah Kuala University - Life Sciences & Engineering Chapter Jurnal Dinamis Jurnal Ilmiah Aplikasi Isotop Radiasi Jurnal Simetris Agrointek Jurnal Ilmiah MITSU (Media Informasi Teknik Sipil Universitas Wiraraja) Media Trend: Berkala Kajian Ekonomi dan Studi Pembangunan Jurnal Teknik Sipil EMITTER International Journal of Engineering Technology BIOLINK (Jurnal Biologi Lingkungan, Industri, Kesehatan) Jurnal Studi Al-Qur'an Jurnal Analisa Sosiologi The Spirit of Society Journal : International Journal of Society Development and Engagement JURNAL AGRICA JIPI (Jurnal Ilmiah Penelitian dan Pembelajaran Informatika) Jurnal Mantik PERSPEKTIF Civilla : Jurnal Teknik Sipil Universitas Islam Lamongan Jurnal Ilmiah Teknik Mesin "MEKANIK" Jurnal Teknika INFOKUM Jurnal Penelitian Manajemen Terapan (Penataran) AGRISAINS: Jurnal Ilmiah Magister Agribisnis Budapest International Research and Critics Institute-Journal (BIRCI-Journal): Humanities and Social Sciences Jurnal Teknologi Sistem Informasi dan Sistem Komputer TGD Jurnal Pengabdian kepada Masyarakat Jurnal SAINTIKOM (Jurnal Sains Manajemen Informatika dan Komputer) Proceeding International Seminar of Islamic Studies TARBAWY: Indonesian Journal of Islamic Education Jurnal Pengabdian Masyarakat IPTEK Dinamis Jurnal Sistem Komputer Triguna Dharma (JURSIK TGD) Jurnal Sistem Informasi Triguna Dharma (JURSI TGD) Jurnal Prointegrita Jurnal Karya Abdi Masyarakat IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Teknologi dan Industri Pertanian Indonesia Jurnal Riset Multidisiplin dan Inovasi Teknologi Rona Teknik Pertanian International Journal of Economics and Business (IJEB)

Zulkifli Lubis

Program Studi Ilmu Dan Teknologi Pangan Fakutas Pertanian USU Universitas Sumatera Utara

Author-ID : 309200

Religion Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Public Health Social Sciences Transportation Other

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STUDY EXPERIMENTAL OPTIMASI KOLEKTOR PLAT DATAR DENGAN MENGGUNAKAN PIPA BERSIRIP UNTUK MEMANASKAN AIR 120 LITER Firman W. Siahaan; Himsar Ambarita; Andianto Pintoro; Zulkifli Lubis
DINAMIS Vol. 7 No. 4 (2019): Dinamis
Publisher : Talenta Publisher

Energi surya merupakan salah satu energi terbarukan yang dimana panas yang diperoleh dari matahari dapat dimanfaatkan tanpa merusak lingkungan. Pemanfaatan energi surya yang paling umum adalah untuk memanaskan air baik sistem aktif maupun sistem thermosifon. Menggunakan sel photovoltaic sebagai sumber energi untuk memompa air merupakan satu terobosan yang menjanjikan. Penelitian ini bertujuan untuk meningkatkan efisiensi kolektor plat datar dengan ukuran 1,62m x 1,14m x 0,08m untuk memanaskan air berkapasitas 120 L dengan menambahkan pipa bersirip sebagai sirkulasi air secara kontiniu yang dirancang oleh Herdy dan telah diuji pada kondisi cerah. Diadapat hasil terbaik dari pengujian pada tanggal 22 Agustus 2019, Adapun hasil penelitian ini adalah : 1) Perbandingan radiasi matahari perhitungan dengan radiasi pengukuran : Radiasi rata-rata teoritis pada tanggal 22 Agustus 2019 adalah 699,1073 W/m2 dan Radiasi rata-rata pengukuran adalah 378,666 W/m2. 2) Efisiensi bersih kolektor didapat sebesar 65,44%. 3) Efisiensi pada sirip yang diletakkan pada pipa sirkulasi air sebesar 67,56% dengan menggunakan sirip n =234. 4) Temperatur air maksimum dari seluruh tahap penelitian adalah 49,84 O C yaitu pengujian pertama pada tanggal 22 Agustus 2019. 5) Energi yang dibutuhkan untuk memanaskan air sebanyak 120 liter pada pengujian 22 Agustus 2019 selama delapan jam sebesar 11065,296 kJ. 5) Besar energi terbuang dari kolektor selama pengujian pada tanggal 22 Agustus 2019 adalah: Pada sisi samping kolektor sebesar 42153.991 J , Pada sisi depan belakang sebesar 29672.641 J ,Pada sisi bawah kolektor sebesar 413508,889 J , Pada sisi atas kolektor sebesar 4886778.321 J , Total energy yang terbuang sebesar 5372113,842 J.

WARNA KULIT DAN KOMPOSISI KIMIA BUAH ASAM GELUGUR (Garcinia atroviridis Griffith et Anders.) PADA TINGKAT KEMATANGAN YANG BERBEDA Fathia Rahmadini; Elisa Julianti; Zulkifli Lubis
AGROINTEK Vol 14, No 2 (2020)
Publisher : Agroindustrial Technology, University of Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/agrointek.v14i2.6159

Gelugur acid (Garcinia atroviridis) is a fruit with high citric acid content so that it can be used as a source of antioxidants. This research was aimed to study the effect of fruit maturity on the color and chemical composition of gelugur fruit. Gelugur acid fruits with the different maturity level such as unripe, half-ripe, and ripe were analyzed for color, moisture content, ash content, total acid, total dissolved solids, and citric acid levels. The results showed that fruit maturity had a significantly different effect (P 0.05) on color, moisture content, ash content, total acid, total dissolved solids, and citric acid levels. The color of fruit which is stated by oHue has a value of 71.6149-86.1362, including the yellow-red category. The higher the level of maturity, the lower the value of oHue which indicates the color of the fruit more yellow. Moisture content, ash content, and total dissolved solids increase with increasing maturity, but total acid and citric acid levels decrease with increasing fruit maturity. The highest levels of citric acid were obtained in raw fruit at 6.22%.

Peluang Pelaksanaan Manajemen Kolaboratif dalam Pengembangan Kawasan Situs Kota Cina sebagai Potensi Pariwisata di Kota Medan Biliater Situngkir; Zulkifli Lubis; Abdul Kadir
PERSPEKTIF Vol 9, No 2 (2020): PERSPEKTIF - July
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/perspektif.v9i2.3295

The development of the Chinese city site area as a tourism potential in the city of Medan is very important considering the city of Medan does not yet have natural tourism objects that are well managed. The type of study used in this research is descriptive with a qualitative approach where research is carried out to create a tourism development using the Collaborative Management (Co-Management) method. To obtain data and to deepen the implementation of collaborative management, in-depth interviews were conducted with key informants and questionnaires so that the data needed in this study was complete. Data obtained in the field, both secondary data and primary data will be compiled, presented and analyzed with a qualitative approach in the form of exposure which will then be analyzed in accordance with the research problem undertaken. The results of research conducted show that the community has been involved in the development of tourism in the Chinese city site area. But the community is still walking alone in the development of tourism. With the concept of collaborative management, it will certainly be in developing tourism that is more focused and more targeted as desired. From this research it can be concluded that the area of the Chinese city site has a huge opportunity to be developed into the tourism sector that can provide benefits for both the government, the community and the parties involved in developing tourism.

Budaya Batak Toba dalam Pelayanan Pariwisata Danau Toba di Parapat Eka Debora Harianja; R. Hamdani Harahap; Zulkifli Lubis
PERSPEKTIF Vol 10, No 2 (2021): PERSPEKTIF - July
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/perspektif.v10i2.4306

Toba Batak culture is very important for the development of Lake Toba tourism in Parapat. Toba 3H Batak culture (Hamoraon, Hagabeon, and Hasangapon) is a culture that is strongly held by the Toba Batak people. And the culture is carried out in daily living habits including the way the Toba Batak people in Parapat treat tourists and if tourists are satisfied, of course there will be tourism development. So in this study will look at the attitudes, attention, actions, and anticipation of tourism actors both local Toba Batak communities, business people and related parties in increasing the development of tourism in Parapat. The methodology used in this research is qualitative research with a descriptive approach. The informants in this study were key informants in this study were tribal chiefs who knew Batak culture well, the main informants in this study were domestic tourists with Toba Batak and foreign tourists who ended up in Parapat and additional informants in this study were business actors and givers tourism services such as traders, hotel entrepreneurs, restaurant entrepreneurs, hotel servants, restaurant servants, parking attendants, etc., and tourism observers and responsible government agencies such as the Tourism Office and BPS The results of this study indicate that Batak Toba culture can have a positive and negative impact on Lake Toba tourism, but in this study it was seen that Batba Toba 3H culture had a negative impact on the development of tourism. It can be seen how the Toba Batak people serve tourists. The obstacles faced are the habit of the Batak Toba people who are very hard and want to be respected, making tourists not want to return to Parapat

Motif Ekonomi Etnis Karo di Kawasan Sekitar Universitas Sumatera Utara Muhammad Adenan Ginting; Badaruddin Badaruddin; Zulkifli Lubis
PERSPEKTIF Vol 9, No 2 (2020): PERSPEKTIF - July
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/perspektif.v9i2.3543

This study aims to see the economic motives of the Karo ethnic group in developing and surviving in the USU region. This type of research uses a qualitative approach, the research location is in Jalan Jamin Ginting Medan or specifically in the Padang Bulan area, precisely from the campus intersection to the Harmonika Road intersection and the Road Development area to the Kampung Susuk intersection. Taking this location is intended to be more detailed and specific to see how the existence of USU becomes a central point for Ethnic Karo to adapt to follow development by mingling in the provision of student needs. The results showed that the motives that influenced the ethnic karo to survive were the land they owned as an inheritance and believed that the land had a living spirit (ertendi); strategic land with the existence of USU as the main attraction of their business. the motive influencing the ethnic karo to develop is to look at the short-term opportunities of their efforts to just survive, only see the opportunities available and only be able to provide the needs of students in accordance with the times. The conclusion from the iani research is that the Karo Ethnic survive in the area around the University of Sumatra because they have strong motives in themselves, how they maintain their assets. Karo ethnic develops because of the opportunities presented. A character that is found in the field of how ethnic karo who love to gamble with luck is implemented in the way they see business opportunities. USU as an opportunity was recognized as their way to reap profits and develop businesses.

Penggunaan Serat Eceng Gondok Dalam Campuran Laston Tipe V SNI 03-1737-1989 Terhadap Indeks Marshall Properties Agus Tonny Arifianto; Zulkifli Lubis
Civilla : Jurnal Teknik Sipil Universitas Islam Lamongan Vol 4, No 1 (2019): March
Publisher : Litbang Pemas - Universitas Islam Lamongan

Road is one of the most important transportation infrastructures in the development progress of society's live. Pavement structure has an important role in providing optimal service. Traffic loads that exceed the limit conditions often occur,for there is a certain consideration in planning the asphalt mixture, including improving the asphalt quality. The idea to modify asphalt materials with admixture materials is expected to enlarge the asphalt attachment energy to the stone. One of them is using water hyacinth fiber. This study aims to find out the effect of water hyacinth fiber addition to the characteristics of Type V SNI 03-1737-1989 asphalt concrete mixture on the Marshall test index. The method used is experimental method. Laboratory testing is conducted using water hyacinth fiber to the mixture of Type VSNI 03-1737-1989 asphalt concrete as the aditional material with variations of 1%, 1.5%, 2%, 2.5% and 3% of total asphalt weight in the mixture on asphalt condition optimum 5.72%. The results of Marshall Stability increases by 5.88%, plastic melting (flow) increases by 9%,void in the mix increases by 38.59%, void filled with asphalt decreases by6.54%, void in mineral aggregate increases by 5.60%, the density of the mixture increases by 2.59% and Marshall Quotient decreases by 3.38%.

The Study on Utilization Waste Tire Seeds as Amixture of Ac-Wc Asphalt on Road Pavement Fauzan Adzim; Zulkifli Lubis; Bobby Damara
Civilla : Jurnal Teknik Sipil Universitas Islam Lamongan Vol 6, No 2 (2021): September
Publisher : Litbang Pemas - Universitas Islam Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30736/cvl.v6i2.717

The purpose of this study are to find out the process of making AC-WC asphalt by using waste tire ore as an additives to hot mix asphalt and also to find out the general effect of waste tire ore as additives in the asphalt mixture to the characteristics of AC-WC asphalt. [2].In this study, the variation of the mixture added with tire ore starting from 0%, 3%, 6% and 8% addition of tire ore waste for the highest variation value is 3%, stability value is 494.99 kg, Voids Filled With Asphalt’s value is 68,40%, value of Voids in Mix is 3.65%, flow value is 3,21 %, value of Marshall Quotient is 154,61 kg/mm, Density’s value is 2,29 gr/cc. Finally, it was concluded that the addition of waste tire ore is not in accordance with SNI 06-2489-1991 because the higher percentage value in the mixture will decrease the value of Marshall Stability.

Maintaining viability of rubber shelled seed for storage of 16 days period by polyethylene glycol 6000 treatments . Charloq; Zulkifli Lubis; Tumpal H. Siregar; Sengly B. Damanik; J. Elisa; M. Husni
Proceedings of The Annual International Conference, Syiah Kuala University - Life Sciences & Engineering Chapter Vol 3, No 1 (2013): Life Sciences
Publisher : Syiah Kuala University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (112.497 KB)

Rubber seeds have no dormancy, germinate rapidly and fungal growth is the limiting factor influencing storage period of seed viability. Solution of Polyethylene glycol 6000 (PEG 6000) have osmotic potential and osmotic adjustment that is used as a coating material is expected to be a preservative during storage. The purpose of this study was to test the effect of polyethylene glycol 6000 in inducing secondary dormancy by reducing the seeds germination and fungus growth to maintain the seed viability in storage period and to test seed viability and vigor after storage period. First stage of the study was using nonfactorial completely randomized design with four levels of polyethylene glycol with four replications, namely:PEG 6000 (w / v): 0%, 15%, 30%, 45%; The second step, was germination phase in germination tub after the storage period. The first study showed that concentration of 15% PEG 6000 to 45% were able to induced secondary dormancy by delaying seed germination from 0.67% to 0.33%, that significantly different from the 0% PEG 6000 (17.67%) that was able to reduced fungal seed from 16.33 to 26.33% andwas not significantly different in each treatment. The second study showed that PEG 6000 can maintain viability and vigor of seeds with seed germination above 97%, seedlings height 22.40 cm and number of leaves was 7.16. PEG 30% is the best concentration to increase the shelf life period of rubber seed andmaintained morphological characteristics after storage period. The higher the concentration of PEG 6000 the higher were the seed viability during shelf. The morphology and growth of the seedlings, had the same adaptability to the tub germination in planting medium.

The Impact Of Sundaries To Improve Production And Welfare (Case study Cabai Sundari Innovation Desa Lembor District Brondong Lamongan District East Java Province) Abid Muhtarom; Bambang Eko Muljono; Zulkifli Lubis; Nuril Badriyah; Abdul Ghofur; Husen -
MediaTrend Vol 13, No 2 (2018): Oktober
Publisher : Trunojoyo University of Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/mediatrend.v13i2.4370

Chili Sundari, Farmers Innovation So Superior Product Lembor Village, Brondong District, Lamongan Regency, East Java Province is a blessing for the people of Lembor village, because of the innovation of this product, the potential of the village can be done and explored more deeply and systematically.The type of research used is quantitative research. Quantitative research is a research by collecting data that is numerical then using statistical procedures to obtain information behind the image. The location of this research is Lembor Village, Brondong District, Lamongan Regency, East Java Province, where the data used in this research are primary and secondary data. Primary data in this research is questionnaire.The increase of new superior product type make a big impact on Chili farm sector so that it can increase the production of chili farming. And theoretically the economy can improve the welfare of farmers with increased income perkapital farmers

Analisa kinerja sistempendingin peltier yang menggunakan sel PVdengan sumber energi radiasi matahari Terang UHSG; Zulkifli Lubis; Tulus Burhanuddin Sitorus
Jurnal Energi Dan Manufaktur Vol 9 No 2 (2016): Oktober 2016
Publisher : Department of Mechanical Engineering, University of Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (263.602 KB)

Abstrak:Pemanfaatan energi surya secara umum digunakan untuk energi termal dan energi listrik. Salah satu aplikasi dari sistempemanfaatan untuk energi listrik adalah penggunaan fotovoltaik (PV). Tujuan penelitian ini adalah untuk mengetahui kinerjasistem kerja kotak pendingin dengan bantuan sel PV yang menyerap sumber energi matahari. Kelebihan dari dari sistempendinginan ini adalah beroperasi tanpa menggunakan energi listrik serta ramah lingkungan. Penelitian ini menggunakankomponen elektronik peltier untuk pendingin. Komponen peltier dirangkai dengan heat sink dan kipas kecil diletakkan di bagianluar dan kipas yang lain diletakkan di bagian dalam kotak pendingin. Kotak pendingin terbuat dari styrofoam. Data perubahantemperatur sistem kotak pendingin yang diperoleh kemudian dianalisa sehingga dapat diperoleh kinerja sistem kotak pendingintersebut. Pengujian dilakukan di ruangan terbuka yang mengalami paparan radiasi matahari. Proses pengukuran parametercuaca dilakukan dengan menggunakan alat ukur cuaca HOBO dan untuk merekam perubahan temperatur pada setiapkomponen sistem pendingin peltier digunakan data akuisisi. Hasil penelitian menunjukkan bahwa nilai COP maksimum sistempendingin peltier yang dapat dicapai adalah 0,317. Pada penelitian ini, juga diteliti pengaruh kondisi cuaca yang meliputi radiasimatahari, temperatur dan kelembaban udara terhadap kinerja sistem pendingin peltier.Kata kunci: sistem pendingin peltier, kinerjaAbstract:The utilization of solar energy consist of thermal energy and electrical energy. One application of the system for the utilization ofelectrical energy was photovoltaic (PV). The purpose of this study is to determine the performance of cooler box with PV cellsthat absorb the solar energy. The advantages of this cooling system was operated without using the electrical energy andenvironmentally friendly. This study uses electronic components Peltier for cooling. The peltier component assembled with a heatsink. The small fan that was placed on the outside and the other fan was placed inside the cooler. The cooler system was madeof styrofoam. The changing of temperature in the cooler system was analyzed and obtained the performance of the cooling boxsystem. The experiments were carried out in open space which exposure to solar radiation. The HOBO station was used tomeasure the weather parameter. To record the changing of temperature in the components was used data acquisition. Theresults showed that the maximum COP of peltier cooling system that can be achieved was 0.317. In this research, also wasstudied the effect of weather conditions against the performance of peltier cooling system.Keywords: peltier cooling system, performance

Co-Authors A Halim Nasution A. Husein Siregar Abd. Wahid Simangunsong Abdul Basyir, Abdul Abdul Ghofur Abdul Kadir Abdul Kadir Abdullah Muhazir, Abdullah Abid Muhtarom Abid Muhtarom, Abid Adityas, Muhammad Bahtiar Afandi, Randi Bachtiar Afdal Al Hafiz Affandy*, Nur Azizah Afina, Nudiya Agus Purwoko Agus Tonny Arifianto Agustinus S Agustrisno, Agustrisno Ahmad H. Siregar Ahmad Hakam Al Fauzi, Dwiki Wahyu Al Hafiz, Afdal Alfian H. Siregar Alfian Hamsi Alfian Hamsi Siregar Alma Amalia Sabilla Andianto Pintoro Andrian Wahyu Prayogi Ardianto Pranata Arif, Saiful Nur armanda, vika Arvian Angga Baktiar Aswan Jaya Azlan Azlan Bachri, Affan Badaruddin & Humaizi Badaruddin & Humaizi Badaruddin Badaruddin Bagus Setiawan Bambang Eko Muljono Barita, Barita Bayu Azmi Biliater Situngkir Bobby Damara BR. SEMBIRING, SRI ALEM Budiman Yudha Simbolon Butar Butar, Dewi Sartika Charloq Dahria, Muhammad Dalimunthe, Syukur Kholil Daulay, Harmona Deski Helsa Pane Dewi Anggraeni Dewi ANGGRAENI Dian M Nasution Dian M. Nasution Eka Debora Harianja Ekasari, Ratna Elisa Julianti Elisa Julianti Fahri Hidayah Farel H. Napitupulu Farel M Napitupulu Farid Aulia Farid, Mifta Farida Ariani Farida Ariani Fathia Rahmadini Fauzan Adzim Felix Hutapea, Juan Felix Hutapea Fernando P Gurning Ferry Sembiring Fery Hadi Setiawan Fikarwin Zuska Firman W. Siahaan Firman W. Siahaan Gibran . Gideon Manik Ginting, Muhammad Adenan Hamdani, R. Hamdi, Misbakhul Hammam Rofiqi Agustapraja Harahap, Sutan Harapan Panjaitan Hasugian, Jonner Heni Pujiastuti Hilman, Adrian Himsar Ambarita Husen - Hutabarat, Mutiara Hutasoi, Slamat Aditia Ibnutama, Khairi Ika Nur Lestari Ikhwansyah Isranuri Imam Sakroni Indra Milyardi Irfansyah, M. Iswan Ansukarto Sukardi Iswan, Mochammad izzatul Mardhiah J. Elisa Jawanri Maurisco Saragih Jefri H Manik Jenny Elisabeth Julianti, Elisa Junita Lubis Junjungan Saut Bonar Pangihutan Simanjuntak kamil erwansyah Kamil Erwansyah Kamil, M Kusnasari, Sri Kustini, Rini Libert Sijabat Lubis, Junita Lubis, Zulkarnaian Lukman Hakim M. Husni M. Sabri Maemunah Mahadi, Batu Mahyunis Marlinawati Nehe, Agnes Masyuni Hutasuhut Mauladi, Kemal Farouq Megy Stefanus Mhd Gilang Suryanata MUBA SIMANIHURUK Muhammad Adenan Ginting MUHAMMAD SYAFIK Muhammad Syahril Muhammad Zulfikri Mujahiddin, Mujahiddin Mukhadiroh, Lailiyah Mukhlis Ramadhan Muldani, Muldani Munaffidah, Erlindiyanti Saidatul Murbanto Sinaga Mutya Vonnisa Nainggolan, Sarah Nasution, Yusri Indra Nh, Ah. Syarifuddin Nirwana, Nico Nita Savitri Norman Pamungkas NUGRAHA MUNTHE Nurcahyo Budi Nugroho Nurdiana Nurdiana Nurdiana Nurdiana Nurdiana Nurdiana Nurhamidah Gajah Nuril Badriyah Nurul Badriyah Nurul Badriyah Oppusunggu, K. Oppusunggu, Kamrul Panjaitan, Harapan Panjaitan, Zaimah Piolina, Piolina Poltak Sirait Pramio G Sembiring Pratiwi, Neny Prayuda, Dimas Purwadi Purwadi Putri, Resta Ayuning Putri, Resta Ayuning R. Hamdani Harahap Ramadhan, Mukhlis Ramadhan, Puji Sari riansah, wahyu Rudi Gunawan Ruswaji Salsabila, Unik Hanifah SAM, M Danny Sembiring, Ferry Sengly B. Damanik Setiyawan, Hendro Silaban, Jhon Adi F. Sinaga, Hotnida Sinaga, Murbanto Sinaga, Patar AP Sirait, Dielsie Naomi Ekaputri Sirait, Poltak Siregar, Achmad Husein Situngkir, Biliater Sobirin Sobirin Stefani Limanto Suryanata, Mhd. Gilang Sustroyorini, Emalia Nova Sutrisno, Franky Syahril Gultom syaifuddin syaifuddin SYARIL GULTOM Tarigan, Bahtra Yudha Tekad Sitepu Terang UHS Ginting Terang UHSG Terip Karo-Karo Tulus B Sitorus Tulus B. Sitorus Tulus Burhanuddin Sitorus Tulus Burhanuddin Sitorus Tumpal H. Siregar Umri N Siregar Wahyu Purnomo, Wahyu Wibisono Wibisono Winata, Hendryan Yulfitra Zuhri Zahra Zulkarnaian Lubis Zulvia C.N Ginting zunaidi, mhd

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