Hani Abduljalal, M., O. MOHAMMED Yaya, M. Abdul satar Ibrahim, and I. A Thanoon. “Propolis: Biochemical and Clinical Evaluation”. Annals of the College of Medicine, Mosul, vol. 43, no. 2, Dec. 2021, pp. 216-9, doi:10.33899/mmed.2021.132433.1126.