Utom, Sebastian Liban, Elmy Johana Mohamad, Ruzairi Abdul Rahim, Noorfarahane Yeop, Hanis Liyana Mohmad Ameran, Herdawatie Abdul Kadir, Siti Zarina Mohd Muji, and Jaysuman Pusppanathan. 2018. “Non-Destructive Oil Palm Fresh Fruit Bunch (FFB) Grading Technique Using Optical Sensor”. International Journal of Integrated Engineering 10 (1). https://publisher.uthm.edu.my/ojs/index.php/ijie/article/view/1856.