Uddin, M., A. K. M. Hossain, M. Alam, and A. Z. M. Hossain. “Ketorolac and Pethidine in Post-Operative Pain Relief”. Bangladesh Journal of Pharmacology, Vol. 2, no. 1, 1, pp. 35-42, doi:10.3329/bjp.v2i1.498.