Wicaksono, Stevanus, Setya Rahayu, and Donny Kusuma. “The Relationship Between Motivation, Self-Management and Self-Competence With Procrastination Behavior in Futsal Athletes at Politeknik Negeri Sriwijaya”. Journal of Physical Education and Sports 9, no. 2 (April 15, 2020): 172-178. Accessed November 22, 2024. https://journal.unnes.ac.id/sju/jpes/article/view/40779.