ÖZGENÇ, C. ., A. . KARAGÖZ, ve A. . GÜNGÖR. “BOLU İLİNDE ALTERNATİF TURİZM TÜRLERİNDEN KONGRE TURİZMİNİN YAPILABİLİRLİĞİNİN DEĞERLENDİRİLMESİ”. Journal of Recreation and Tourism Research, c. 4, sy Special Issue 1, Nisan 2017, ss. 49-61, https://jrtr.org/index.php/jrtr/article/view/230.