Zawawi, M. Anis, and Mokhammad Firdaus. 2021. “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 (3), 508 -21. https://doi.org/10.29407/js_unpgri.v7i3.15796.