| 1. | THE EFFECTIVENESS OF USING E-LEARNING OBJECTS FOR DEVELOPING SOME ELEMENTS OF ENVIRONMENTAL LITERACY FOR PREPARATORY STAGE STUDENTS | |
| Pages 1-69 | ||
| Amr I. R. Argawy; Reham Refaat; G. Allam Amr | ||
| 2. | AVAILABILITY OF THE INGREDIENTS FOR APPLYING ENVIRONMENTAL COST ACCOUNTING IN THE ECONOMIC BLOCS OF THE COMMON MARKET FOR EASTERN AND SOUTHERN AFRICA "COMESA" | |
| Pages 219-271 | ||
| Henda .M. Sh. Elsayed; Yahya M. Abo Taalb; Hoda E. Helal; Wael F. Abd Elbast | ||
