Alaribe , Chinwe S., A.R. Oladipupo, Adisa O. Ola, C. Okeoma, A.O. Adeyeye, K. A. Basheeru, Rastrelli Luca, et H. A. B. Coker. 2018. « Comparative Chemical and Quantitative Analysis of Flavonoid Contents In Propolis Samples From South East (Abia) and South West (Ibadan) Of Nigeria ». Nigerian Journal of Pharmaceutical and Applied Science Research 7 (2):19-27. http://mail.nijophasr.net/index.php/nijophasr/article/view/215.