mahmoud, mahmoud farag 2013. Foraging Activity of Four Bee Species on Sesame Flowers During Two Successive Seasons in Ismailia Governorate, Egypt. Pesticides and Phytomedicine / Pesticidi i fitomedicina. 1, 1 (Mar. 2013). DOI:https://doi.org/10.2298/pif.v1i1.3212.