Haq, I. ul, Saleem, M. A., Ansari, A. R., Hassan, H., & Yousaf, A. (2016). EFFECT OF CHEWING GUM ON COGNITION AND BEHAVIOURAL ATTRIBUTES. Pakistan Journal of Physiology, 12(1), 22–25. Retrieved from https://pjp.pps.org.pk/index.php/PJP/article/view/418