Ibrahim Khader, Sura, Amera Ali Ahmed, and Ibrahem Talal Dawod. 2009. “Biological Effect of Acetone Extract of Quercus Infectoria and Hibiscus Sabdariffa in Some Germs Compared to a Number of Antibiotics”. Journal of Education and Science (JES) 22 (1):108-16. https://doi.org/10.33899/edusj.2009.57412.