Juliansyah MA, Sugiyanto F, Hita IPAD. The fitness of middle age to the elderly based on body mass index and age in the new normal era. j. Sport Area [Internet]. 2021 Aug. 1 [cited 2024 Jul. 3];6(2):254-62. Available from: https://journal.uir.ac.id/index.php/JSP/article/view/6362