Tong-on, S., and P. Pasunon. “CLUSTER ANALYSIS OF TECHNOLOGY ACCEPTANCE MOBLIE PHONE AMONG UNDERGRADUATE STUDENTS IN UNIVERSITY IN BANGKOK”. RMUTT Global Business and Economics Review, vol. 16, no. 1, June 2021, pp. 67-80, https://so03.tci-thaijo.org/index.php/RMUTT-Gber/article/view/241716.