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All Journal Reaktor JUPIIS: Jurnal Pendidikan Ilmu-ilmu Sosial Jurnal Pengabdian Kepada Masyarakat (Indonesian Journal of Community Engagement) Publikauma : Jurnal Administrasi Publik Universitas Medan Area BIOLINK (Jurnal Biologi Lingkungan, Industri, Kesehatan) Jurnal Administrasi Publik : Public Administration Journal Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal SOLMA Agrotekma: Jurnal Agroteknologi dan Ilmu Pertanian Martabe : Jurnal Pengabdian Kepada Masyarakat JURNAL AGRICA Journal of Education, Humaniora and Social Sciences (JEHSS) Jurnal Pembelajaran dan Biologi Nukleus PERSPEKTIF Abdimas Galuh : Jurnal Pengabdian Kepada Masyarakat AGRISAINS: Jurnal Ilmiah Magister Agribisnis Strukturasi: Jurnal Ilmiah Magister Administrasi Publik JOINT (Journal of Information Technology Jurnal Ilmiah Pertanian ( JIPERTA) Budapest International Research in Exact Sciences (BirEx Journal) Jurnal Agriuma Jurnal Ilmiah Agribios An-Nidhom : Jurnal Manajemen Pendidikan Islam Djtechno: Jurnal Teknologi Informasi Britain International of Exact Sciences Journal (BIoEx Journal) International Journal of Islamic Education, Research and Multiculturalism (IJIERM) Jurnal Ilmu Multidisplin PENG: Jurnal Ekonomi dan Manajemen CULTIVATE: Journal of Agriculture Science

Siti Mardiana

Universitas Medan Area

Author-ID : 501036

Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities 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 Energy Environmental Science Health Professions Immunology & microbiology Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Nursing Physics Public Health Social Sciences Transportation Other

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Peranan Motivasi Kerja dalam Kinerja Pegawai pada Kantor Kecamatan Tanjungbalai Utara Kota Tanjung Balai Sinaga, Asmah Syam; Kadir, Abdul; Mardiana, Siti
Strukturasi: Jurnal Ilmiah Magister Administrasi Publik Vol 2, No 1 (2020): Strukturasi: Jurnal Ilmiah Magister Administrasi Publik, Maret
Publisher : Universitas Medan Area

Aim of scope this research is analysis the role of work motivation in employee performance in Tanjung Balai North Tanjungbalai District office Research method is a method used by researchers in collecting research data. In this study the method used is a qualitative research method which is a research method whose case study leads to a detailed and in-depth description of the portrait of what actually happens according to what is in the field of study. The results showed that the role of work motivation in employee performance in Tanjung Balai North Tanjungbalai District office that motivation is very influential is the work itself which it has if appropriate, but in reality there are still employees who find it difficult to carry out motivation due to the employee wanting to retire, this ditujukkan of employees in completing the work given is always not maximally done well, and the work given to employees in accordance with the expertise and ability of employees so that in the completion of the work will cause a feeling of dislike of the work with results that are not good too. So that it can be said that the work of the employee itself motivates them to work.

Optimization of Xylose Production from Sugarcane Trash by Microwave-Maleic Acid Hydrolysis Hermiati, Euis; Oktaviani, Maulida; Ermawar, Riksfardini Annisa; Laksana, Raden Permana Budi; Kholida, Lutfi Nia; Thontowi, Ahmad; Mardiana, Siti; Watanabe, Takashi
Reaktor Volume 20 No.2 June 2020
Publisher : Dept. of Chemical Engineering, Diponegoro University

Sugarcane trash contains significant amount of xylan that could be hydrolysed to xylose. The xylose could be further fermented to produce xylitol, a sugar alcohol that has low calories and does not cause carries of teeth. In this study we optimized the production of xylose from sugarcane trash by microwave-assisted maleic acid hydrolysis using response surface methodology (RSM). The factors optimized were acid concentration, time, and temperature. The xylose yield based on the weight of initial biomass was determined and it served as a response variable. Results show that acid concentration and interaction between time and temperature had significant effect on xylose yield. The quadratic regression model generated from the optimization was fit and can be used to predict the xylose yield after hydrolysis with various combinations of acid concentration, time, and temperature. The optimum condition for xylose production from sugarcane trash was using maleic acid of 1.52%, and heating at 176 Â°C for 6.8 min. At this condition the yield of xylose was 24.3% per initial biomass or 0.243 g/ g biomass.Keywords: maleic acid; microwave heating; response surface methodology; sugarcane trash, xylose

SISTEM INFORMASI PEMERIKSAAN JALUR KERETA API MENGGUNAKAN DRONE DAN TEKNIK IMAGE PROCESSING Mardiana, Siti; Hamdani, Dani; Chaniago, M Benny; Wahyu, Ari Purno; Heryono, Heri; Suhendri, Suhendri
JOINT (Journal of Information Technology) Vol 2 No 1 (2020): JOINT: Journal of Information Technology
Publisher : Bagian Penelitian, Pengabdian Masyarakat & Pusat Inovasi STMIK "AMIKBANDUNG"

Kereta merupakan moda transportasi utama yang sering kita gunakan, kereta sendiri bisa dimanfaatkan sebagai alat untuk pegiriman barang dan memobilisasi penumpang, transportasi ini sangat unik yang dan memiliki jalur tersendiri berupa rangakaian besi baja melintang hingga beratus kilometer, struktur bantalan kereta api saat ini ada yang menggunakan beton dan kayu, jalur kereta tersebut sangat vital dan merupakan sarana pendukung penting. Proses monitoring jalur kereta api sendiri sangat ini komplek dan rumit diperlukan waktu yang lama, cara sebelumnya bersifat sederhana dan konvesional dengan menyusuri jalur kereta secara manual atau menggunakan alat pengukur geometri yang dipasang direl atau dikenal juga dengan nama railpod, railpod akan menyusuri rel dan akan memberikan report jika terdapat jalur kereta apa yang rusak, patah atau bergeser, pada penelitian ini akan dibuat sistem monitoring berbasis image dengan memanfaatkan drone sebagai alat pemantau jalur rel, cara lain adalah dengan pengambilan gambar bisa menggunakan data satelit yang akan memberikan informasi yang jelas tentang kondisi jalan sebelum dilalui oleh kereta api, sistem pengolahan data jalur kereta api dengan menggunkan image processing bisa menampailkan respon visual hingga ukuran cm, respon tersebut muncul jika ada pergeseran jalur maka sistem langsung memberikan data berupa lokasi dan pergeseran jalur pada komputer utama, sistem ini lebih cepat dalam mengecek dan menganalisa data jalur kereta dengan akurasi dan presisi yang tinggi hingga 90%, selain citra dari satelit pengambilan gambar bisa menggunakan drone, drone sendiri sangat mudah dalam perawatan dan penggunaan serta mampu memangkas biaya produksi bahkan kecelakaan kerja petugas dilapangan sendiri bisa di hindari karena drone mampu menjangkau jalur dan rel kereta api yang sulit misalkan melewati terowongan atau derah rel dijalur perbukitan dan padat penduduk.

Faktor-Faktor Yang Mempengaruhi Penyerapan Tenaga Kerja Pada Industri Pengolahan Kayu di Kabupaten Langkat Gultom, Juliana Frisca; Mardiana, Siti; Ginting, Rahmanta
AGRISAINS: Jurnal Ilmiah Magister Agribisnis Vol 2, No 2 (2020): AGRISAINS: Jurnal Ilmiah Magister Agribisnis JULI
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/agrisains.v2i2.296

This research was conducted for two months from April 2015 to June 2015 in Langkat District, known as one of the centers of the wood processing industry in North Sumatra. The object of research is entrepreneurs in wood industry companies in the study area. Based on the problems that have been formulated, the study aims to: (1) Analyze the effect of working capital variables, wood raw materials, labor costs and productivity in the wood processing industry on labor absorption in Langkat Regency. (2) Analyzing the average size of processed wood production produced by companies in Langkat Regency. (3) Analyzing the amount of the average absorption of labor per month received by the company in Langkat Regency. The study area was determined purposively with a sample size and population of 25 companies. Sampling of respondents using simple random sampling. The data used are primary data and secondary data. To examine the relationship between income and production costs the multiple linear regression analysis model is used. The results of this study indicate that the variable amount of working capital, wood raw materials, labor wages and productivity in the wood processing industry on labor absorption in Langkat District is 374 people with an average of 15 people, the average size of processed wood production produced the company in Langkat Regency is 282,429 m3. And the average absorption of labor per month received by the company in Langkat Regency is 15 people.

Analisa Strategi E-Marketing Dinas Koperasi Ukm Kota Medan Terhadap Ukm Binaan Di Tengah Pandemi Covid-19 Tahun 2020 Lindiawati, Ida; Harahap, Hamdani; Mardiana, Siti
Strukturasi: Jurnal Ilmiah Magister Administrasi Publik Vol 3, No 1 (2021): Strukturasi: Jurnal Ilmiah Magister Administrasi Publik, Maret
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/strukturasi.v3i1.521

The objectives of this study are to: Analyze and explain the effectiveness of internet-based online marketing strategies for SME products, Analyze and explain the implementation of internet-based online marketing strategies for SME products, Analyze and describe the supporting factors for the success of internet-based online marketing strategies for SME products, andÂ Analyze and describe the factors inhibiting the success of the internet-based online marketing strategy for SME products. The results showed that the effectiveness of the internet-based online marketing strategy of the SME products assisted by the Medan City Cooperative Office was still not optimal. The causative factor for this is due to the limited promotional budget owned by the Medan City UKM Cooperative Office in 2020 as well as the refocusing policy. The implementation of an internet-based online marketing strategy for SME products guided by the Medan City UKM Cooperative Office in 2020 in the midst of the Covid-19 pandemic was implemented and complied with the principles of coordination, the idea of cooperation through BRI banks to open easy access to credit, cooperation with online businesses to build digital market place with Grabfood, providing a market place at Bukalapak. Barriers to training distance and high interest in participating in training were seen to be quite dominant.

Pemanfaatan Limbah Serbuk Teh sebagai Substitusi Serbuk Gergaji terhadap Pertumbuhan Miselium dan Produksi Jamur Tiram Putih (Pleurotus Ostreatus) Mardiana, Siti; Panggabean, Ellen L; Kuswardani, Retno A; Usman, Muhammad
Agrotekma: Jurnal Agroteknologi dan Ilmu Pertanian Vol 3, No 1 (2018): Jurnal Agrotekma Desember
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/agr.v3i1.2065

The waste of tea powder is abundant and has not been widely used optimally. The alternative use is to use the waste as an additional medium or substitution for the white oyster mushroom growing media. The purpose of the study was to determine the effect of mycelium growth and the production of the fruit of the white oyster mushroom on combination media / tea powder substitution with sawdust. The research design used was a completely randomized design (CRD) with 4 replications. Combined treatments were M0 = 100% sawdust; M1 = 100% Tea waste powder; M2 = 75% tea powder + 25% sawdust; M3 = 50% tea powder + 50% sawdust and M4 = 25% tea powder + 75% sawdust. All treatments used the composition of the manufacture of mushroom growing media consisting of each combination of treatments, bran 10% by weight of the material and lime 0.5% by weight of the material. The parameters observed were the growth of white oyster mushroom mycelium, the rate of mycelium growth, the time the mycelium closed the substrate, the time of appearance of the fruiting body, the weight of the fruit body and the diameter of the fruit hood. The results showed that all parameters differed significantly. The best treatment is in treatment M4, followed by treatment of M3, M0 and M2.

Pengaruh Pemberian Berbagai Konsentrasi Pupuk Organik Cair Urine Kambing Terhadap Pertumbuhan dan Produksi Tanaman Jagung Manis (Zea mays saccharata Sturt) Nanda, Elgi; Mardiana, Siti; Pane, Erwin
Agrotekma: Jurnal Agroteknologi dan Ilmu Pertanian Vol 1, No 1 (2016): Jurnal Agrotekma Desember
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/agr.v1i1.1100

Penelitian ini bertujuan untuk mendapatkan konsentrasi pupuk organik cair urine kambing yang tepat terhadap pertumbuhan dan produksi tanaman jagung manis. Rancangan percobaan yang digunakan dalam penelitian ini adalah rancangan acak kelompok (RAK) non faktorial yang teridiri dari 5 perlakuan yaitu P0 = 0 %,Â P1= 5 %, P2= 10 %, P3= 15 % dan P4= 20 %. Parameter yang diamati adalah tinggi tanaman (cm), diameter batang (mm), jumlah daun (helai), bobot tongkol berkelobot per plot (g), bobot tongkol berkelobot per tanaman (g), bobot tongkol tanpa kelobot (g), diameter tongkol (g), persentase panjang tongkol berisi (%) dan produksi tongkol berkelobot per hektar (ton). Dari hasil yang telah didapat, diketahui bahwa pemberian berbagai konsentrasi pupuk organik cair urine kambing berpengaruh nyata meningkatkan tinggi tanaman (cm), diameter batang (mm), bobot tongkol berkelobot per plot (g), bobot tongkol berkelobot per tanaman (g), bobot tongkol tanpa kelobot (g), diameter tongkol (mm) dan produksi tongkol berkelobot per hektar (ton). Pemberian berbagai konsentrasi pupuk organik cair urine kambing berpengaruh tidak nyata terhadap jumlah daun (helai) dan persentase panjang tongkol berisi (%). Hasil terbaik untuk meningkatkan pertumbuhan dan produksi tanaman jagung manis adalah pada perlakuan P3 yaitu pada konsentrasi 15 % pupuk organik cair urine kambing.

Hubungan Implementasi Standar Operasional Prosedur (Sop) Berdasarkan Peratiran Menteri Pendayagunaan Aparatur Negara Nomor 35 Tahun 2012 Terhadap Kepuasan Pelanggan Pada Kantor Regional Vi Badan Kepegawaian Negara Siti Rahayu; Marlon Sihombing; Siti Mardiana
Publikauma : Jurnal Administrasi Publik Universitas Medan Area Vol 6, No 1 (2018): PUBLIKAUMA JUNI
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/publika.v6i1.1528

Penelitian ini bertujuan untuk menganalisis pengaruh implementasi standar operasional prosedur terhadap kepuasan pelanggan pada kantor regional VI Badan Kepegawaian Negara, permasalahan yang diangkat dalam penelitian ini adalah masih kurangnya pelaksanaan standart dalam menyelesaikan pekerjaan dikarenakan antara lain (1) Kurangnya pemahaman mengenai SOP yang diterapkan oleh Kanreg VI BKN bahwa penyelesaian pekerjaan sudah ada ukuran waktu penyelesaian, tetapi karena keterbatasan waktu penyampaian berkas dan penyelesaian pekerjaan yang tidak cukup waktu yang telah ditetapkan, sehingga sering terjadi pelanggan merasa tidak dilayani dengan baik, (2) Tidak konsisten dalam menjalankan SOP. Konsisten adalah masalah disiplin dan moral. Konsisten membutuhan kemauan yang kuat untuk terus menerus taat terhadap semua aturan yang tertuang dalam SOP (disiplin). Konsisten juga membutuhkan sikap mental bahwa menjalankan persyaratan SOP pada prinsipnya adalah menjalankan nilai-nilai baik dalam bekerja atau dalam bisnis (moral).Penelitian menggunakan metode penelitian kuantitatif Korelasi Product Moment dengan simpangan dengan responden sebanyak 30 responden. Dari hasil penelitian diketahui bahwa Terdapat korelasi yang positif sebesar 0.743 antara Implementasi Standar Operasional Prosedur (SOP) berdasarkan Permenpan No.35 tahun 2012 terhadap Kepuasan Pelanggan di Kantor Regional VI Badan Kepegawaian Negara Medan, Korelasi diperoleh nilai probabilitas variabel Implementasi Standar Operasional Prosedur (SOP) dengan Kepuasan Pelanggan pada Kantor Regional VI Badan Kepegawaian sebesar 0,0743>0,0376. Dengan demikian hasil Hipotesis adalah H0 ≠ 0, Ha diterima atau korelasi Implementasi Standar Operasional Prosedur (SOP) dengan Kepuasan Pelanggan pada Kantor Regional VI Badan Kepegawaian Negara sangat signifikan.

EFIKASI INSEKTISIDA NABATI EKSTRAK BUNGA KEMBANG BULAN (Tithonia diversifolia A. Gray) TERHADAP HAMA ULAT GRAYAK (Spodoptera litura F.) PADA TANAMAN SAWI DI LABORATORIUM Azwana Azwana; Siti Mardiana; Rizky Raudatul Zannah
BIOLINK (Jurnal Biologi Lingkungan Industri Kesehatan) Vol 5, No 2 (2019): Februari
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/biolink.v5i2.1988

Armyworm (Spodoptera litura) is one of the pests that attack vegetable plants in Indonesia. The attack resulted in the leaves of the plant being cut and perforated so as to reduce productivity and even crop failure The aim of the study was to determine effectiveness of Tithonia diversifolia extract as a vegetable insecticide to control the Spodoptera litura in mustard plants at the laboratory. The study used a completely non-factorial randomized design consisting of 5 treatments, K0 = no extract (control), K1 = concentration 4%, K2 = concentration 6%, K3 = concentration 8%, K4 = concentration 10%. Parameters observed were morphological changes and insect behavior, percentage of larval mortality, percentage of pupae and imago formed. The results that Tithonia diversifolia extract can control Spodoptera litura. The result of 8% (K3) Tithonia diversifolia extract effectively controls Spodoptera litura. The highest percentage of larval mortality of Spodoptera litura (80%) was found in the treatment of K3 (concentration 8%) at observation 9 HSA and the lowest mortality was found in K1 (concentration 4% with an average 67.5%. The lowest formation of pupa and imago in the K3 treatment was 20 and 29.17%

Fungsi Pengawasan Inspektorat Kabupaten Serdang Bedagai Abdul Haris; Heri Kusmanto; Siti Mardiana
Jurnal Administrasi Publik : Public Administration Journal Vol 6, No 1 (2016): Jurnal Administrasi Publik : Public Administration Journal June
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jap.v6i1.1047

Pengawasan merupakan unsur penting dalam proses manajemen pemerintahan, pengawasan memiliki peran yang sangat strategis untuk terwujutnya akuntabilitas publik dalam pemerintahan dan pembangunan melalui suatu kebijakan pengawasan yang komprehensif dan membina, maka diharapkan kemampuan administrasi publik yang saat ini dianggap lemah dan memiliki kendala, terutama dibidang kontrol pengawasan, dapat ditingkatkan kapasitasnya dalam rangka membangun infrastruktur birokrasi yang lebih kompetitif. Inspektorat Daerah memainkan peran yang sangat penting untuk kemajuan dan keberhasilan pemerintah daerah dan perangkat daerah dalam menyelenggarakan pemerintahan di daerah untuk mencapai tujuan dan sasaran. Inspektorat Daerah menjadi pilar yang mempunyai tugas sebagai pengawas sekaligus pengawal dalam pelaksanaan program pemerintah daerah yang tertata dan tertuang dalam Anggaran Pendapatan dan Belanja Daerah (APBD). Untuk menunjang agar pelaksanaan tugas dari Inspektorat Daerah dalam melakukan fungsi pengawasan dapat berjalan secara maksimal, diperlukan adanya kinerja yang lebih intensif dan optimal dari Inspektorat Daerah demi optimalisasi tugas serta tanggungjawab. Berdasarkan hasil analisis yang dilakukan bahwa Kinerja dari Inspektorat daerah dalam melakukan fungsi pengawasan di Kabupaten Serdang Bedagai belum berjalan efektif. Hal ini diindikasikan dengan pembuktian bahwa Independensi dari Inspektorat belum Nampak, Kualitas dan kuantitas Sumber Daya Manusia Aparatur pengawasan yang belum mencukupi dan ketersediaan sarana dan prasarana pendukung yang belum memadai seperti jaringan internet.

Co-Authors Abdul Haris Abdul Haris Abdul Kadir Adam Adam Agustin, Imel Aura AHMAD RAFIQI TANTAWI Ahmad Thontowi Aisy, Risnawati Anis Fauzi, Anis Ansari Priska Damayanti Ari Purno Wahyu Wibowo Asmah Indrawati Azwana Azwana Azwana Azwana Beltahmamero Simamora bobby umroh Brama Caridio Subambhi Caroline Chan, Caroline Chandra Kirana, Linlin Chaniago, M Benny Dani Hamdani, Dani Dona Tiara Ebsan Marihot Sianipar Ellen Lumisar Panggabean Ellen Lumisar Panggabean Elsa, Nadia Endang Sari Manullang Erwin Pane Erwin Pane, Erwin Euis HERMIATI Fitra Aristia Fahmi Lubis Gultom, Juliana Frisca Gunastuti, Dwi Anie Hanim, Wasifah Haryadi, Yudi Hasan, Uswatul Hepi Hapsari Heri Kusmanto Heryono, Heri I Ketut Suada Ida Lindiawati Ilyasa, Muhammad Yasir Indah Apriliya Isnaini Isnaini Kam, Booi Kholida, Lutfi Nia Kusmanto, Heri Kuswardani, Retno A Kuswardani, Retno A Laksana, Raden Permana Budi Lindiawati, Ida Luqman Erningpraja Maksum Syahri Lubis Maksum Syahri Lubis Marlon Sihombing Meidaya Bateâ€™e Meidaya Bate’e Mitra Musika Lubis MUHAMMAD ALI Muhammad Nazarul Yanis Muhammad Rio Purnomo Muhammad Usman Muhammad Usman, Muhammad Muhammad Yogie Ernanda Mustikasari, Molly Nanda, Elgi Nanda, Elgi Nasution, Ahmad Fauzan Nasution, Arif Naufal Afrian, Muhammad Nina Siti Salmaniah Siregar Nina Siti Salmaniah, Nina Siti Novriandi, Dian Nur Fajriati, Asri Nurcahyani, Marizha Nurrahman, Arif Nurshanti, Devia Izmi Oktaviani, Maulida Oriza Sativa Pane, Erwin Panggabean, Ellen L Panggabean, Ellen L Pasaribu, Sarjani R. Hamdani Harahap Rafi Afrianto, Naufal Rahayu, Siti Rahma Sari Siregar Rahman, Raid Habibur Rahmanta Ginting Redwan Doody Marpaung Retno Widhiastuti Retno Widhiastuti Riksfardini Annisa ERMAWAR Rizky Raudatul Zannah Rogers Panggabean RR. Ella Evrita Hestiandari Rudi Salam Sinaga Ryan Fajar Sidik Siregar Sabrina, Raja Saipul Sihotang Sampurna, Yoga Saragih, M.Sc, Faoeza Hafiz Sayyid Al-Fadhil Hasibuan Sayyid Hasibuan Sihombing, Marlon Silvia Tabhita Panggabean Sinaga, Asmah Syam Siswoyo, Bambang H. Siswoyo, Bambang Hendra Sitepu, Dermawanta Siti Rahayu Sitorus, Andika Situmorang, Irene Sri Fajar Ayu Sri Mahdani Sumiati Sumiati Sumihar Hutapea Sumihar Sumihar Sumono Sumono Syahbudin Hasibuan, Syahbudin Syarifah Aini Takashi Watanabe Usman, Muhammad Wahyudi Agustiono Wardani, Wahyu Tirta Wim Putra Tri Pratama S Yuni Zanesty Hutapea Zahari Zen Zannah, Rizky Raudatul Zein, Zahari Zidane Shafwan, Ali Zulkarnain Lubis

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