Hasnat, F., Bhuiyan, H.A. and Misbahuddin, M. 2017. Estimation of vitamin B12 in plasma by High Performance Liquid Chromatography. Bangladesh Journal of Pharmacology. 12, 3 (Jul. 2017), 251–255. DOI:https://doi.org/10.3329/bjp.v12i3.33108.