Riyadi, Tantri, et al. “Problems of Regulation of Gratification in Law Number 20 Of 2001 Concerning Amendments to Law Number 31 Of 1999 Concerning Eradication of Gratification Criminal Act of Corruption”. Rechtsnormen: Journal of Law, vol. 3, no. 6, Dec. 2025, pp. 308-13, doi:10.70177/rjl.v3i6.3007.