Laosiritaworn, P., N.- or Saensuk, O. Chuacharoen, and W. Panjan. “The Development of a Training Program to Enhance Product Presentation Efficiency of a Unit-Linked Life Insurance Policy for Financial Advisors”. Journal of Multidisciplinary in Humanities and Social Sciences, vol. 3, no. 3, Sept. 2020, pp. 469-88, https://so04.tci-thaijo.org/index.php/jmhs1_s/article/view/244184.