Kabir, Abul Kalam Lutful, et al. “Formulation Development and <i>In Vitro< I> Evaluation of Metformin Hydrochloride Matrix Tablets Based on Hydroxypropyl Methyl Cellulose”. Stamford Journal of Pharmaceutical Sciences, vol. 1, no. 1, Jan. 2009, pp. 51-56, doi:10.3329/sjps.v1i1.1808.