| 1. | Efficiency of Azotobacter, on Growth of Wheat Plants and Its some Anatomical Characteristics | |
| Pages 65-72 | ||
| H. A. H. El-zawawy; E. A. E. Abd El-aziz; A. I. A. El-Ghomary | ||
| 2. | Characterization of Cyanobacterial Strains Isolated from Soils Polluted with Insecticides | |
| Pages 73-78 | ||
| Aida H. Afify; F. I. A. Hauka; H. A. H. El- Zawawy; A. E. A. Abou Elatta | ||
