ทัพชัย ธ. “Marketing Mix Factors That Affect Buying Sanitary wares’s Behavior of Consumers in Pathum Thani”. Pathumthani University Academic Journal, vol. 10, no. 1, May 2018, pp. 40-45, https://so05.tci-thaijo.org/index.php/ptujournal/article/view/179157.