Oberhofer Dimitrijevic, Gal, Dario Silic, and Ivana Silic. “CAN ECOTOURISM OFFER SUSTAINABLE DEVELOPMENT: WHY COSTA RICA SUCCEEDED”. Global journal of Business and Integral Security (November 9, 2022). Accessed May 4, 2024. https://gbis.ch/index.php/gbis/article/view/109.