Fatimah S, Hutasoit M. HUBUNGAN PENGGUNAAN SMARTPHONE DENGAN PERKEMBANGAN ANAK USIA PRASEKOLAH DI PAUD DAN TK BHAKTI SIWI PURWOREJO: THE CORRELATION BETWEEN SMARTPHONE USE AND DEVELOPMENT OF CHILDREN OF PRESCHOOL AGE IN PAUD AND TK BHAKTI SIWI PURWOREJO. JKN [Internet]. 2022 Dec. 23 [cited 2025 Oct. 9];10(2):37-45. Available from: https://jurnal.stikes-notokusumo.ac.id/index.php/jkn/article/view/219