Rahma, Kartika Dwi, Tri Anjaswari, Sulastyawati Sulastyawati, and Joko Wiyono. “The Relationship Between Gadget Use and Sleep Quality in Class VII Adolescents at SMP Negeri 1 Blitar: Bahasa Indonesia”. Jurnal Pendidikan Kesehatan (e-Journal) 12, no. 2 (October 26, 2023): 163–171. Accessed November 14, 2025. https://ojs.poltekkes-malang.ac.id/jpk/article/view/3945.