1.
Komarudin, Paramitha ST, Ramadhan MG, Novian G. Increasing mental toughness through COVID-19 gymnastics in adult people. j. Sport Area [Internet]. 2022 Dec. 5 [cited 2024 Apr. 25];7(3):354-60. Available from: https://journal.uir.ac.id/index.php/JSP/article/view/9080