Nighute, S., K. Buge, and S. Kumar. “EFFECT OF CIGARETTE SMOKING ON PEAK EXPIRATORY FLOW RATE: A SHORT REVIEW”. International Journal of Current Research in Physiology and Pharmacology (IJCRPP), Vol. 1, no. 1, Dec. 2017, pp. 3-5, https://sumathipublications.com/index.php/ijcrpp/article/view/2.