Phanchan, C. “A Study of Potentiality of Religious and Meditation Tourism for Development Buddhist Tourism Travel and Activities: A Case of Khon Kaen and Mahasarakham Province”. Mahachula Academic Journal, vol. 5, no. ฉบับพิเศษ, Aug. 2018, pp. 111-30, https://so04.tci-thaijo.org/index.php/JMA/article/view/141075.