Uppapong, K., S. Photchanacha, and P. Thechatakerng. “Influence of Social Media Customer Relationship Management Towards Financial Performance: Empirical Evidence of Spa Businesses in Thailand”. NIDA Business Journal, no. 28, Dec. 2022, pp. 51-72, https://so10.tci-thaijo.org/index.php/NIDABJ/article/view/50.