พิมพ์ช่างทอง ดารณี. “CLUSTER ANALYSIS FOR MARKETING CAMPAIGN USING SOCIAL NETWORK”. RMUTT Global Business and Economics Review 13, no. 1 (June 28, 2018): 139–150. Accessed May 19, 2024. https://so03.tci-thaijo.org/index.php/RMUTT-Gber/article/view/241908.