Akhirson, Armaini. “The Implementation of Health Protocols in Facing Pandemic Covid-19 at Ragunan Wildlife Park”. Ilomata International Journal of Social Science 3, no. 2 (April 30, 2022): 182-194. Accessed March 29, 2024. https://www.ilomata.org/index.php/ijss/article/view/411.