BALLI, Erdinç, ve Meltem CANOĞLU. “IDENTIFYING MOTIVATIONAL FACTORS FOR TREKKING ACTIVITIES”. Journal of Recreation and Tourism Research 4, no. 4 (Aralık 30, 2017): 94–105. Erişim Eylül 29, 2022. https://jrtr.org/index.php/jrtr/article/view/218.