“ Diversity and Abundance of Wild Bees (Hymenoptera: Apoïdea) Foraging the Flowers of Hedysarum Flexuosum: Insight through Three Successive Follow-up Seasons in Tizi-Ouzou (Algeria) ”. 2020. Bulletin of Pure & Applied Sciences- Zoology 39 (1): 17-24. https://doi.org/10.48165/.