Ari Mukti, Fanji, C Eswaran, Noramiza Hashim, Ho Chiung Ching, and Mohamed Uvaze Ahamed Ayoobkhan. 2018. “An Automated Grading System for Diabetic Retinopathy Using Curvelet Transform and Hierarchical Classification”. International Journal of Engineering and Technology 7 (2.15): 154-57. https://doi.org/10.14419/ijet.v7i2.15.11375.