Trapsilo, B. 2026. Who Pays the 20 Percent Deduction? Vacancy in Concession Funding Arrangements in Government Regulation Number 31 of 2026. Advances In Social Humanities Research. 4, 11 (Nov. 2026), 1882–1898. DOI:https://doi.org/10.46799/adv.v4i11.745.