Dewi, Septaliza. “SURVEY OF THE PHYSICAL FITNESS OF MENTALLY RETARDED CHILDREN”. JIPES - JOURNAL OF INDONESIAN PHYSICAL EDUCATION AND SPORT 7, no. 01 (June 26, 2021): 69-75. Accessed May 4, 2024. https://journal.unj.ac.id/unj/index.php/jipes/article/view/20994.