Zainal Bakri SF, Hariri A, Ismail M, Abdullah S, Kassim NI. Evaluation of Respiratory Symptoms, Spirometric Lung Patterns and Metal Fume Concentrations among Welders in Indoor Air-Conditioned Building at Malaysia. IJIE. 2018;10(5). Accessed April 15, 2026. https://publisher.uthm.edu.my/ojs/index.php/ijie/article/view/3038