Nurhayati, N. et al. 2025. Development of a Desmos-Assisted Flipbook E-Module to Improve Mathematical Problem-Solving Ability. Kognitif: Jurnal Riset HOTS Pendidikan Matematika. 5, 4 (Dec. 2025), 1743–1759. DOI:https://doi.org/10.51574/kognitif.v5i4.3546.