Prakash, D., R.N. Singh, O.P. Gupta, and S.B. Kumar. 2010. “Alkaline Earth Metal Complexes: Mixed Ligand Complexes of Alkaline Earth Metal Salts of Some Organic Acids With Naturally Occurring Substrate ”. Asian Journal of Chemistry 8 (1):115-19. https://asianpubs.org/index.php/ajchem/article/view/24027.