Chai Ching Tan, Phrapalad Somchai Damnoen, Yannakorn Toprayoon. “An Exploratory Study of the Spirituality – Oriented Experiences of Tourists”. International Journal of Advanced Science and Technology, Vol. 29, no. 7, May 2020, pp. 2478-84, http://sersc.org/journals/index.php/IJAST/article/view/18006.