Kısa Ovalı, P., ve G. Tachir. “Improvements Within the Scope of Ecological Design: Dadia Ecotourism Area (Greece)”. International Journal of Contemporary Economics and Administrative Sciences, c. 8, sy 2, Aralık 2018, ss. 1-20, http://ijceas.com/index.php/ijceas/article/view/226.