Chongvisal, R., D. Yolao, and S. C. Carr. “The Study of Leadership and New Direction for Developing Entrepreneurs in Thai Small and Medium Sized Enterprises”. The Journal of Behavioral Science, Vol. 4, no. 1, Nov. 2017, pp. 10-22, https://so06.tci-thaijo.org/index.php/IJBS/article/view/2173.