Rahardja, U., Q. Aini, E. . Purnama Harahap, and R. Raihan. “GOOD, BAD AND DARK BITCOIN: A Systematic Literature Review”. Aptisi Transactions on Technopreneurship (ATT), vol. 3, no. 2, Aug. 2021, pp. 115-9, doi:10.34306/att.v3i2.175.