Tuamsook, R., P. Poonpol, and K. Pattrawiwat. “Development of Virtual Transformational Leadership Scale for Leaders in E-Commerce Businesses”. The Journal of Behavioral Science, vol. 18, no. 2, May 2023, pp. 70-83, https://so06.tci-thaijo.org/index.php/IJBS/article/view/262524.