“Mapping The Potential Of Natural Resources To Improve Community Welfare In Tukak Sadai Sub-District, Southern Bangka District: Pemetaan Potensi Sumber Daya Alam Guna Meningkatkan Kesejahteraan Masyarakat Di Kecamatan Tukak Sadai Kabupaten Bangka Selatan”, jpu, vol. 2, no. 1, Aug. 2018, doi: 10.33019/jpu.v2i1.127.