PAL, S., M. S. ISLAM, S. AHMED, and M. M. UDDlN. “?SYNTHESIS AND CHARACTERIZATION OF MIXED LIGAND COMPLEXES OF TITANIUM (III) AND OXOVANADIUM (IV) CONTAINING A 14-MEMBERED MACRO CYCLE AND ORGANIC MONOBASIC ACIDS”. Biological Sciences - PJSIR, vol. 40, no. 5-12, Oct. 1997, pp. 1-4, https://v2.pjsir.org/index.php/biological-sciences/article/view/2337.