Phuttarak, Siriphon, Chanin vijchulata, Sukajit Na Nakorn, and Aniruth Phongpaew. “Work Efficiency of Life Insurance Agents in AIA Insurance Company”. Journal of Multidisciplinary in Humanities and Social Sciences 3, no. 2 (June 21, 2020): 221–234. accessed October 9, 2026. https://so04.tci-thaijo.org/index.php/jmhs1_s/article/view/243535.