Nursaba, Siti, Dikdik Zafar Sidik, Muhamad Tafaqur, and Mulyana Mulyana. “The Effect of Imagery Training on Increasing the Confidence of Hockey Athletes”. Indonesian Journal of Sport Management 4, no. 4 (November 30, 2024): 448–459. Accessed June 16, 2025. https://www.ejournal.unma.ac.id/index.php/ijsm/article/view/11615.