Saragi, Alexander Adrian. “A Seasonal Tourism During the COVID-19 Pandemic in Parapat, Lake Toba: Seasonal Tourism During the COVID-19 Pandemic in Parapat, Lake Toba”. Jurnal Koridor 13, no. 1 (June 28, 2022): 8-19. Accessed April 16, 2024. https://talenta.usu.ac.id/koridor/article/view/8346.