Sahetapy, Lisa. “The Effect of Gadgets on Cognitive Development of Children Age 5-6 Years In Sirimau Sub-District, Ambon City”. International Journal of Education, Information Technology, and Others 4, no. 1 (April 8, 2021): 103-111. Accessed June 1, 2026. https://www.jurnal.peneliti.net/index.php/IJEIT/article/view/687.