Hodaifah, N, M. Masduki, and Tri Sulistyangingsih. 2018. “Regional Government Cooperation in Keeping Brantas River Basin With Sumber Brantas Village Community, Bumiaji Sub-District, Batu City”. Journal of Local Government Issues 1 (1):44-55. https://doi.org/10.22219/logos.Vol1.No1.44-55.