Muhamad M, Mohamad Japeri AZUS, Mohd Deni S. Reduction of Response Variable Influential Outliers Using M-Estimation in the Next Day Prediction of Ground-Level Ozone Concentration. ijie. 2020;12(1):270-279. Accessed July 18, 2024. https://publisher.uthm.edu.my/ojs/index.php/ijie/article/view/2471