Fatqurhohman, F. et al. 2026. Pengembangan Bahan Ajar Digital Interaktif Menggunakan Flip PDF Professional untuk Pembelajaran Geometri SMP. SMARTH: Journal of Mathematics Education and Learning. 2, 2 (Oct. 2026), 131–144. DOI:https://doi.org/10.66031/smarth.v2i2.717.