Shaikh, A., Reza, S., Rahman, M. and Bakshi, P.K. 2012. Preparation and Characterization of Vitamin B₁₂ Model Complexes. Dhaka University Journal of Science. 60, 1 (Apr. 2012), 97–101. DOI:https://doi.org/10.3329/dujs.v60i1.10345.