Phongthanapanich, P. “The Causal Relationship Model of Purchasing Decision Through Social Media of Undergraduate Students in Bangkok Metropolitan Region: The Multiple Group Structure Analysis”. Modern Management Journal, vol. 22, no. 2, Jan. 2025, pp. 119-31, https://so04.tci-thaijo.org/index.php/stou-sms-pr/article/view/274250.