Rita Yulifah, and Tri Johan Agus Y. “Community Empowerment through the Use of Roptar As a Child Development Stimulation Tool”. Jurnal Pengabdian Dan Pemberdayaan Masyarakat Indonesia, vol. 2, no. 11, Nov. 2022, pp. 425-33, doi:10.59247/jppmi.v2i11.176.