ABDAlLA, N. A. (1997) “?SYNTHESIS AND SPECTRAL STUDIES OF MIXED lIGAND COMPLEXES OF SOME AZOPYRAZOLONES”, Biological Sciences - PJSIR, 40(1-4), pp. 1–4. Available at: https://v2.pjsir.org/index.php/biological-sciences/article/view/2315 (Accessed: 25 November 2024).