Virji, Julia, Desnita Desnita, Hidayati Hidayati, and Selma Riyasni. “Validity of The Electronic Enrichment Book ‘Sitinjau Lauik from the Perspective of Physics’”. Indo-MathEdu Intellectuals Journal 6, no. 1 (February 28, 2025): 1835–1841. Accessed June 5, 2026. https://ejournal.indo-intellectual.id/index.php/imeij/article/view/2757.