Prasanphanich, A. (2019). The Marketing Mix (4Ps) and Benefits of Online Travel Agency (OTA) in Marketing Promotions of the Hotels in Nakhon Phanom Province. Journal of Thai Hospitality and Tourism, 14(1), 3–15. Retrieved from https://so04.tci-thaijo.org/index.php/tourismtaat/article/view/174895