Smithikrai, C., and J. Suwannadet. “Authentic Leadership and Proactive Work Behavior: Moderated Mediation Effects of Conscientiousness and Organizational Commitment”. The Journal of Behavioral Science, vol. 13, no. 2, July 2018, pp. 94-106, https://so06.tci-thaijo.org/index.php/IJBS/article/view/136333.