Zainal Bakri, S. F., Hariri, A., Ismail, M., Abdullah, S., & Kassim, N. I. (2018). Evaluation of Respiratory Symptoms, Spirometric Lung Patterns and Metal Fume Concentrations among Welders in Indoor Air-Conditioned Building at Malaysia. International Journal of Integrated Engineering, 10(5). https://publisher.uthm.edu.my/ojs/index.php/ijie/article/view/3038