Situmorang, Kristina, Indah Pujiastuti, and Dian Lestari. “ANALISIS TEMA, AMANAT, DAN FUNGSI DALAM KUMPULAN LIRIK LAGU OPERA BATAK”. Jermal 2, no. 2 (January 8, 2022): 203-218. Accessed August 17, 2022. https://ojs.umrah.ac.id/index.php/jermal/article/view/3810.