Ramanuj Kumar, A. Pandey, A. Panda, R. Mallick, and A. Kumar Sahoo, “Grey-Fuzzy Hybrid Optimization and Cascade Neural Network Modelling in Hard Turning of AISI D2 Steel ”, IJIE, vol. 13, no. 4, pp. 189–207, Apr. 2021, Accessed: Mar. 11, 2026. [Online]. Available: https://publisher.uthm.edu.my/ojs/index.php/ijie/article/view/5936