Figueora JD, Yuson LA, Hipol JLS, Villaflor MRD, Rahim TR, Usman. Modeling real-world periodic phenomena using sine and cosine functions. J. Adv. Education. Sci. [Internet]. 2026 Jul. 14 [cited 2026 Jul. 16];6(4):26-30. Available from: https://dzarc.com/education/article/view/1127