Okot, Tom, Jorge Sanchez Quiros, and Carlos Castro Mejía. “Sustainable Rural Tourism Management: Upgrading Eco-Friendly and Self-Sustainable Hotels in Costa Rica”. UNIE Business Research 11, no. 1 (June 1, 2022): 2–14. Accessed September 29, 2026. https://unieresearch.universidadunie.com/ubr/article/view/376.