DASAR, Jurnal ILMU. Cover JID Volume 22 No 1 (2021). Jurnal ILMU DASAR, [S.l.], v. 22, n. 1, jan. 2021. ISSN 2442-5613. Available at: <https://jurnal.unej.ac.id/index.php/JID/article/view/21949>. Date accessed: 13 june 2021.