“Pengaruh Mental Training dan Konsentrasi terhadap Kemampuan Shooting (Free Throw) dalam Permainan Bola Basket” (2021) Indonesian Journal of Education Research and Technology (IJERT), 1(1), pp. 10–17. Available at: https://ejournal.ununtb.ac.id/index.php/ijert/article/view/53 (Accessed: 23 March 2026).