Ali, M Obaidulla Ibne, Nur E Atia, Tohorul Islam, MN Islam, PM Basak, and CK Das. “Effect of Vitamin A on Lung Function Test in Patient With Chronic Bronchial Asthma”. TAJ: Journal of Teachers Association 27, no. 1 (November 28, 2018): 10–13. Accessed April 19, 2024. https://www.banglajol.info/index.php/TAJ/article/view/37602.