Danlami, Muktar, Sofia Najwa Ramli, Nur Izzah Syahira Jemain, Zahraddeen Pindar, Sapiee Jamel, and Mustafa Mat Deris. 2018. “An Efficient Iris Image Thresholding Based on Binarization Threshold in Black Hole Search Method”. International Journal of Engineering & Technology 7 (4.31): 34-39. https://doi.org/10.14419/ijet.v7i4.31.23337.