H. A. Elmusharaf and A. E. M. Saeed, “Green Chemistry and Biginelli Reaction”, IJSBAR, vol. 33, no. 1, pp. 15–20, Apr. 2017, Accessed: Sep. 12, 2025. [Online]. Available: https://www.gssrr.org/JournalOfBasicAndApplied/article/view/7181