M. M. Mustafa Hussein Mughataz. “Constructing and Standardizing the Sunk Cost Fallacy Scale for Coaches ”. Musamus Journal of Physical Education and Sport (MJPES) 7, no. 4 (October 31, 2025): 275-279. Accessed March 15, 2026. https://ejournal.unmus.ac.id/index.php/physical/article/view/7434.