Irej Zainab Javed, Hania Ijaz, Juwayria Omar, Sohaib Ahmad, Daniyal Tariq, Zoha Aziz, Rimsha Shahbaz, and Nida Khaliq. “Happiness Index of Undergraduate Students of Air University, Islamabad a Cross Section Study”. BMC Journal of Medical Sciences 2, no. 2 (January 3, 2022): 64–67. Accessed December 22, 2024. https://bmcjms.org/index.php/bmcj/article/view/14.