“?STUDIES ON THE MIXED LIGAND COMPLEXES OF Cr (III) AND Co (III) CONTAINING MONOBASIC ACIDS ANDTETRAAZA MACROCYCLES”. Biological Sciences - PJSIR 42, no. 2 (April 19, 1999): 70–73. Accessed March 10, 2026. https://v2.pjsir.org/index.php/biological-sciences/article/view/2114.