ZOUAOUI, A. 2003. ZONALITES CLIMATIQUES POUR LE BLE DUR (Triticum durum Desf. var. MBB) ET ORGE (Hordeum vulgare L var. Saida) AU SUD DES HAUTES PLAINES CONSTANTINOISES. Sciences & Technology. C, Biotechnologies. 20 (Dec. 2003), 61–71.