Ardianto, Ferry, Said Junaidi, and Sugiarto -. “PROFIL DENYUT NADI DI KETINGGIAN YANG BERBEDA PADA PENDAKI GUNUNG MERBABU”. Journal of Sport Science and Fitness 4, no. 2 (1). Accessed November 25, 2024. https://journal.unnes.ac.id/sju/jssf/article/view/6284.