Laadel, N., Benia, F., Oulmi, A., & Guettaf, S. (2020). Contribution to the study of xylophagus insects and their role in the decline of Alep pine (Pinus halepensis mill.) in El Ouldja’s Megsem forest (Setif - Algeria). Journal of Drug Delivery and Therapeutics, 10(5), 105-107. https://doi.org/10.22270/jddt.v10i5.4385