Taufik Usman, Rachmat, et al. “Developing Strategies for an Integrated Ecotourism Business: Study Case in Olele Village, Bone Bolango Regency, Gorontalo, Indonesia”. Business Review and Case Studies, vol. 3, no. 3, Dec. 2022, p. 215, https://doi.org/10.17358/brcs.3.3.215.