Mumuni A Momoh, Calister E Ugwu, Tenderwealth Clement Jackson and Ngumezi C Udodiri 2017. Sustained release formulation of metformin-solid dispersion based on gelucire 50/13- PEG4000: an in vitro study. International Journal of Drug Delivery. 9, 3 (Sep. 2017), 52–70.