Pauline Ong, Jia Hang Wu, Tze Ching Ong, Kee Huong Lai and Nur Fathieyah Sulaiman 2026. A Rule-Based Approach for Oil Palm Fruit Ripeness Detection using Machine Vision. Journal of Engineering Technology and Applied Physics. 8, 1 (Mar. 2026), 6–11. DOI:https://doi.org/10.33093/jetap.2026.8.1.2.