Magdalena Wullur, Abdul R. Dilapanga, Laurens L. Bulo, E.E. Masengi, and J.E.H Mokat. “Bottlenecks Analysis Of Geotourism Policy Integration For Sustainable Tourism In North Sulawesi Province”. Educational Administration: Theory and Practice, vol. 30, no. 9, Sept. 2024, pp. 139-45, doi:10.53555/kuey.v30i9.7564.