Ginting, Riah Ukur, Hestina, and Erdiana Gultom. “Edukasi Trello Bagi Guru Di SDN 060937 Kotamadya Medan”. Jurnal Abdimas Mutiara 4, no. 1 (February 8, 2023): 108–112. Accessed January 30, 2026. https://e-journal.sari-mutiara.ac.id/index.php/JAM/article/view/3704.