Kairsonrat, S. ., Phophrom, S. ., & Nusong, S. . (2019). The Model of Adventure -Tourism Development in Ratchaburi by Using Mountain Bikes . Muban Chombueng Rajabhat University Research Journal (Humanities and Social Science), 7(2), 96–111. Retrieved from https://so03.tci-thaijo.org/index.php/hssj/article/view/248254