Nikmah, Rohmatun, and Reni Permata Sari. “The Relationship of Gadget Use and Social-Emotional Development in South Lampung, Indonesia”. Symmetry & Sigma: Journal of Mathematical Structures and Statistical Patterns, vol. 1, no. 1, May 2024, pp. 42-57, https://doi.org/10.58989/symmerge.v1i1.9.