IBRAHIM, S. S. “?CONVERSION OF 2-METHYLCHROMONES TO PYRIMIDINE DERIVATIVES”. Biological Sciences - PJSIR 39, no. 9-12 (December 23, 1996): 161–166. Accessed June 8, 2025. http://www.biostaging.pjsir.org/index.php/biological-sciences/article/view/2400.