S. Darwish, Elham, Fivian F. Mahmoud, and Farag M.A. Altalbawy. 2012. “Synthesis and Antimicrobial Evaluation of Some New Pyrazole, Fused Pyrazolo[1,5-A]- Pyrimidine and Pyrazolo[1,5-d]pyrimido[4,5-d][1,2,3]triazine Derivatives”. Asian Journal of Chemistry 24 (7):2997-3002. https://asianpubs.org/index.php/ajchem/article/view/9280.