Forecast of COVID-19 cemetery land needs with system dynamics modeling Bondan Prakoso, I Dewa Ketut Kerta Widana, Rudy Pramono, Ernalem Bangun and Hafizh Surya Islami E3S Web Conf., 331 (2021) 01010 Published online: 13 December 2021 DOI: 10.1051/e3sconf/202133101010