SAURMA SIAHAAN. CERAMAH TENTANG TREND DAN ISU DALAM KOMUNIKASI DI WARKOP ARTOMORO MEDAN. Jurnal Abdimas Mutiara, [S. l.], v. 2, n. 2, p. 507–509, 2021. Disponível em: https://e-journal.sari-mutiara.ac.id/index.php/JAM/article/view/4405. Acesso em: 31 jan. 2026.