C. Maulina, S. Saminan, and M. Duskri, “Mathematical Understanding Ability of Students through Contextual Teaching Learning at the Merchant Marine School”, IJSBAR, vol. 44, no. 2, pp. 135–142, Mar. 2019, Accessed: Feb. 03, 2026. [Online]. Available: https://gssrr.org/JournalOfBasicAndApplied/article/view/9765