Figueora, Jonalyn DG., Lorraine A. Yuson, Jester Lee S. Hipol, Mark Ren D. Villaflor, Titin Rahmiatin Rahim, and Usman. “Modeling Real-World Periodic Phenomena Using Sine and Cosine Functions”. Journal of Advanced Education and Sciences 6, no. 4 (July 14, 2026): 26–30. Accessed July 16, 2026. https://dzarc.com/education/article/view/1127.