Ritman, Nahlionny , Universitas Sumatera Utara
Ritonga, Ajuan , Universitas Muslim Nusantara Al-Washliyah
Ritonga, Alwi Dahlan, Universitas Padjadjaran
Ritonga, Alwi Dahlan, Universitas Sumatera Utara
Ritonga, Anggi Marito, Student of Mathematics, Universitas Sumatera Utara, Medan, 20155, Indonesia
Ritonga, Aulia Rahma , Universitas Sumatera Utara
Ritonga, Aulia Rahma, Universitas Sumatera Utara
Ritonga, Aulia Rahma, University of Sumatera Utara
Ritonga, Dai Ridho, University of Sumatera Utara
Ritonga, Dwi Herawati, Department of Pediatrics, RSUD Deli Serdang, Lubuk Pakam, Indonesia
Ritonga, Eka Nurwani
Ritonga, Fajar, Universitas Sumatera Utara
Ritonga, Fajar Utama , Universitas Sumatera Utara
Ritonga, Fajar Utama, Faculty of Social Sciences and Political Sciences Social welfare science Universitas Sumatera Utara
Ritonga, Fajar Utama, Universitas Sumatera Utara
Ritonga, Fajar Utama, Universitas Sumatera Utara, Indonesia
Ritonga, Melva Lianur, Department of Agricultural and Biosystems Engineering, Universitas Sumatera Utara, Indonesia
Ritonga, Mudhita Zikkrullah, Faculty of Veterinary Medicine, Universitas Syiah Kuala, Banda Aceh, Indonesia
Ritonga, Mudhita Zikkrullah, Universitas Pembangunan Panca Budi Medan
Ritonga, Noniya Dewinta Anggi, Universitas Sumatera Utara
Ritonga, Sholihin Anwar Muda , Regional and Rural Planning Study Program, Postgraduate School, Universitas Sumatera Utara, Medan, 20155, Indonesia
Ritonga, Syaira Arlizar, Universitas Sumatera Utara
Rivai, Muhammad, Undergraduate Program, Faculty of Pharmacy, Universitas Sumatera Utara, Medan 20155, Indonesia
Rival, Adrian , Universitas Sumatera Utara
Rivany, Riza , Department of Obstretics and Gynaecology, Faculty of Medicine, Universitas Sumatera Utara, Medan, 20155, Indonesia

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