Boonsiritomachai , Waranpong, and Thidaporn Trongpraween. “The Effect of Team Affective Tone on Team Efficiency”. Business Review Journal 12, no. 2 (December 25, 2020): 83-97. Accessed May 11, 2021. https://so01.tci-thaijo.org/index.php/bahcuojs/article/view/245287.