Kittinorarat, J. “Monitoring, Evaluating and Furthering the Commercial Usage of Tourism and Hospitality Industry Research Projects in 2017”. Phranakhon Rajabhat Research Journal : Humanities and Social Sciences, vol. 15, no. 2, Aug. 2020, pp. 93-108, https://so05.tci-thaijo.org/index.php/PNRU_JHSS/article/view/238304.