Memon, A., A. Imran, S. Aftab, U. Nawaz, and F. Ishaque. “Low Back Pain Among Student Motorcyclists: A Cross-Sectional Study”. Journal of the Dow University of Health Sciences (JDUHS), vol. 13, no. 2, July 2013, pp. 113-6, https://mail.jduhs.com/index.php/jduhs/article/view/786.