Mustafa, Wan Azani, Ahmad Syauqi Mahmud, Muhammad Zaid Aihsan, M. Saifizi, and C. Charin. “A Comparative Study of Different Blood Vessel Detection on Retinal Images”. International Journal of Integrated Engineering 11, no. 4 (September 5, 2019). Accessed July 1, 2022. https://publisher.uthm.edu.my/ojs/index.php/ijie/article/view/4718.