“IMPLEMENTATION OF REGIONAL REGULATION NUMBER 7 OF 2016 ON ENVIRONMENTAL CLEANLINESS AND BEAUTIFICATION IN AMUNTAI SELATAN DISTRICT, HULU SUNGAI UTARA REGENCY  (Case Study on Special Waste in Environmental Cleanliness)” (2026) Journal of Development Administrations Thinking Understand: Public and Business Administration (DATU), 3(1), pp. 32–45. doi:10.36658/datu.v3.i1.1976.