D. E. Ighravwe and S. Ayoola Oke, “Surface Roughness Prediction and Optimisation using Novel Joint Artificial Neural Network and Bat Algorithm”, IJIE, vol. 14, no. 4, pp. 20–34, Jun. 2022, Accessed: Aug. 07, 2026. [Online]. Available: https://journal.uthm.edu.my/index.php/ijie/article/view/5721