Saragi Sitio, E.F. 2026. The Influence of Using Digital Pocket Books on Parents Knowledge About Early Childhood Sexual Education: Elisabeth Fransisca Saragi Sitio, Kartika Ananda, Rahmah Dwi Sistiarini. QALAMUNA: Jurnal Pendidikan, Sosial, dan Agama. 18, 1 (Jan. 2026).