Silalahi, Sonia, and Yuni Mariani Manik. “Digital Books for Improving Students’ Learning Motivation at SDN 001 Pasar Dolok Sanggul”. Journal of Applied Educational Study 1, no. 3 (August 30, 2025): 34–39. Accessed February 3, 2026. https://journal.planthroper.com/jaes/article/view/70.