Yudamson A. Cover polos Volume 2 Nomor 1 Maret 2018. JSS [Internet]. 2018 Mar. 27 [cited 2026 Jan. 15];2(1):i. Available from: https://www.jss.lppm.unila.ac.id.121-50-32-50.cpanel.site/index.php/ojs/article/view/89