Joshian Nicolas William. “Land Suitability of The Marine Ecotourism in Mantehage Village, Wori District, North Minahasa Regency, North Sulawesi Province”. Jurnal Spatial Wahana Komunikasi Dan Informasi Geografi, vol. 20, no. 1, Mar. 2020, pp. 8-13, doi:10.21009/spatial.201.2.