Saha, S., R. Begum, A. Rahman, M. Z. Sultan, M. S. Amran, and M. A. Hossain. “Evaluation of in Vitro Interaction of Metformin With Ibuprofen in Aqueous Medium”. Bangladesh Pharmaceutical Journal, vol. 16, no. 2, Feb. 2015, pp. 189-94, doi:10.3329/bpj.v16i2.22303.