Della, Aprillia Savita, and Heryanto Nur Muhammad. 2026. “The Effect of the Pesantren Educational Environment on the Cardiovascular Fitness Outcomes of Seventh-Grade Students at MTs Manba’ul Hikam”. Journal of Educational Sciences 10 (1): 1575-84. https://doi.org/10.31258/jes.10.1.p.1575-1584.