Mylsidayu A, Mamesah ED. Motivasi berolahraga atlet tinju selama pandemi covid-19. j. olahraga prestasi [Internet]. 2022 Sep. 20 [cited 2025 May 22];18(3):85-93. Available from: https://journal.uny.ac.id/index.php/jorpres/article/view/53480