1.
Arshad S, Rizvi SHA, Qureshi MF, Hanif M, Iftikhar I, Ayoub M, Kumar S. Effectiveness of laughter therapy in cognitive skills improvements. IJEHSR [Internet]. 1Mar.2019 [cited 15Sep.2019];7(1):55-0. Available from: http://aeirc-edu.com/ojs14/index.php/IJEHSR/article/view/385