Diah Kusyani, Rika Kartika, Risna Mira Bella Saragih, Agik Nur Efendi, Muhamad Parhan, “Cultural Literacy in the Digital Age: A Mobile Learning Model Based on North Sumatran Folklore for Junior High Schools ”, jds, vol. 19, no. S2, pp. 1013–1025, Jun. 2026.