W. YEEMIN, S. KEMARAT, and A. THEANTHONG, “PSYCHOLOGICAL FACTORS AND STRATEGIES OF ELITE FUTSAL ATHLETES IN TRAINING: CLASSIFIED BY PLAYING POSITIONS: จำแนกตามตำแหน่งการเล่น”, J Sports Sci Technol, vol. 18, no. 1, pp. 59–67, Jul. 2018.