Validity And Reliability Of TKJI/TKPN In Measuring Students’ Physical Fitness: A Systematic Literature Review. Compet. J. Pendidik. Kepelatihan Olahraga [Internet]. 2026 May 31 [cited 2026 Jun. 6];18(2):4031-42. Available from: https://competitor.idjournal.eu/index.php/competitor/article/view/971