Pankham, S. ., and S. . Lachonnabot. “Causal Relationship Model of Used Cameras Purchase Intention on Facebook Page Konkaiklong-CameraTown of Consumers in Bangkok and Its Vicinity”. Journal of Multidisciplinary in Humanities and Social Sciences, vol. 4, no. 2, May 2021, pp. 490-05, https://so04.tci-thaijo.org/index.php/jmhs1_s/article/view/249627.