Bahtra, R., and M. Affandi. “The Importance Of 3m Abc Gymnastics For Early Children’s Growth, Development And Health”. INTERNATIONAL JOURNAL OF SPORT SCIENCE, HEALTH AND TOURISM, Vol. 1, no. 1, Feb. 2023, pp. 13-24, http://ijssht.ppj.unp.ac.id/index.php/IJSSHT/article/view/3.