Rahim Zahid, ATM Zoadur, MA Bari, Chandra Rani Sarkar, Shirin Akhter Begum, and Abdullah Hil Mosawuir. 2012. “FVC, FEV<sub>1</sub> and FEV<sub>1</Sub>% in Male Tobacco Industry Workers”. Journal of Bangladesh Society of Physiologist 6 (2):90-93. https://doi.org/10.3329/jbsp.v6i2.9757.