Harsadin Sornpala ห. ส. “Motivation and Marketing Mix Influencing Tourists’ Buying Behavior at Ceramic Outlet Lampang Province Thailand”. Dusit Thani College Journal, vol. 11, no. 1, July 2018, pp. 205-23, https://so01.tci-thaijo.org/index.php/journaldtc/article/view/135529.