algamal, yousif mohamed, M. A. Embaby, and Majed H. Shtaiwi. “Cooxidation of Chalcones and Oxalic Acid Using Chromium (VI)”. International Journal of Sciences: Basic and Applied Research (IJSBAR) 15, no. 1 (April 10, 2014): 66–79. Accessed January 31, 2026. https://www.gssrr.org/JournalOfBasicAndApplied/article/view/2069.