Abou El-Naga,, A., Ghanim, A., Basuny, N. (2009). 'COMPARISON OF HONEY PRODUCTION BETWEEN INSTRUMENTTALLY INSEMINATED AND NATURALLY MATED QUEENS IN FIELD COLONIES IN EGYPT', Journal of Plant Protection and Pathology, 34(7), pp. 8309-8313. doi: 10.21608/jppp.2009.217239