AHMED HUSSEIN, M. and NAEEF AYOUB, Z. 2019. PROPOLIS IMPACT ON THE HONEY BEE LIFE SPAN, VARROA MITE INFESTATION AND POPULATION GROWTH OF THE COLONY. Journal of Duhok University. 22, 1 (Aug. 2019), 300-311. DOI:https://doi.org/10.26682/avuod.2019.22.1.28.