Faizin, M. N. ., E. Wahyuningrum, and A. K. . Gayatina. “Relationship Between Smartphone Addiction and Sleep Disturbance in School Age Children”. Jurnal Ilmu Keperawatan Jiwa, vol. 4, no. 4, Nov. 2021, pp. 733-40, https://journal.ppnijatengprov.org/index.php/jikj/article/view/1359.