“Heading to Provincial Championship Boxing 2020 East Java: A Study of Physical Condition in Ontang-Anting Sasana Boxing Athletes”. Jurnal SPORTIF : Jurnal Penelitian Pembelajaran 7, no. 3 (December 31, 2021): 508–521. Accessed April 1, 2025. https://ojs.unpkediri.ac.id/index.php/pjk/article/view/15796.