Nurhawati Simamora. “SOSIALISASI PEMBUATAN IKLAN DI WARKOP ARTOMORO MEDAN”. Jurnal Abdimas Mutiara 1, no. 1 (March 13, 2020): 423–427. Accessed January 30, 2026. https://e-journal.sari-mutiara.ac.id/index.php/JAM/article/view/4385.