Limbong YM, Sihombing RSM. COLLABORATIVE GOVERNANCE IN OVERCOMING LAKE TOBA POLLUTION DUE TO FLOATING NEEDLE CANES (CASE STUDY IN SILALAHI III VILLAGE SILAHISABUNGAN DISTRICT DAIRI REGENCY). IJSSPP [Internet]. 2025 Jun. 30 [cited 2026 May 31];3(2):110-4. Available from: http://ijsspp.yayasanwayanmarwanpulungan.com/index.php/IJSSPP/article/view/130