Ningrum, N., T. Purwanti, and Y. Mildiana. “Optimalisasi Perkembangan Motorik Pada Bayi Dengan Baby Gym”. Jurnal Abdi Medika, Vol. 2, no. 01, June 2022, pp. 1-9, https://digilib.itskesicme.ac.id/ojs/index.php/jam/article/view/1028.