KhairunnisaD., PurwantoB., and ErmawatiW. J. “Cryptocurrency Risk Analysis During the Covid-19 Pandemic: Value at Risk (VaR) Approach”. Jurnal Manajemen Dan Organisasi, Vol. 13, no. 1, Mar. 2022, pp. 61-73, doi:10.29244/jmo.v13i1.40428.