Islam, M. S., Begum, M., Roy, H. N., & Reza, Y. (1998). ?STUDIES ON MIXED LIGAND COMPLEXES OF IRON (III), CHROMIUM (III) AND NICKEL (II) CONTAINING DICARBOXYLIC ACID AND 5, 7, 7, 12, 14, 14 HEXAMETHYL 1, 4, 8, 11 TETRAAZACYCLOTETRADECA 4, 11 DIENE. Biological Sciences - PJSIR, 41(5), 221–224. Retrieved from https://v2.pjsir.org/index.php/biological-sciences/article/view/2275