Djinarto, Bambang, and Slamet Suhartono. “Comparison of Digital Tax in Indonesia and Singapore on Tax Criminal Law Enforcement: A Review of the Ultimum Remedium Principle”. American Journal of Public Law and Political Education, vol. 1, no. 3, Sept. 2024, pp. 115-42, doi:10.47134/ajplpe.v1i3.53.