Muhamad, M., Mohamad Japeri, A.Z.U.-S. and Mohd Deni, S. (2020) “Reduction of Response Variable Influential Outliers Using M-Estimation in the Next Day Prediction of Ground-Level Ozone Concentration”, International Journal of Integrated Engineering, 12(1), pp. 270–279. Available at: https://publisher.uthm.edu.my/ojs/index.php/ijie/article/view/2471 (Accessed: 12 March 2026).