BOUKERKER, HASSEN, AND 		SI BACHIR, ABDELKRIM.
" BIODIVERSITY OF XYLOPHAGOUS INSECTS AND THEIR ROLE IN THE Cedrus atlantica FORESTS DECLINE IN THE NATIONAL PARK OF BELEZMA – BATNA- (ALGERIA)" <em>Courrier du Savoir</em> [على الإنترنت], المجلد 20(19 يناير 2016)