Leaf anatomical adaptation of some spontaneous species of the Sahara (El Oued region, Algeria)KHERRAZ Khaled، GHEMAM AMARA Djilani، Laouadj Hacene، Atallah Merzaga، Fridjat ZobidaInternational Journal of Biosciences (IJB)الصفحات 507-5142019مقال وصول مفتوح