Sri Suyati, E. ., S. Sonedi, B. Bulkani, M. . Fatchurahman, I. Nurbudiyani, and M. A. Setiawan. “The The Relationship of Physical Fitness and Social-Economic Status and students’ Learning Achievement”. Retos, vol. 46, Sept. 2022, pp. 494-00, doi:10.47197/retos.v46.93808.