A. Al-Iraqi, M., محمد, K Al-Naimi, خ., A Al- Sabawi, and ا. 2008. “Synthesis of Some Phenolic and Amino Derivatives of Cinchoninic Acid”. Journal of Education and Science (JES) 21 (2):39-48. https://doi.org/10.33899/edusj.2008.51238.