Alam, M. M., S. M. S. Islam, S. M. M. Rahman, and M. M. Rahman. “Simultaneous Preparation of Facial and Meridional Isomer of Cobalt-Amino Acid Complexes and Their Characterization”. Journal of Scientific Research, vol. 2, no. 1, Dec. 2009, pp. 91-98, doi:10.3329/jsr.v2i1.2032.