الفترة:
Subjects: Cairo; Torrents; Twenty-first century; Valleys
Subjects: Valleys; Pollution; Sanitation; Waste water; Water
Subjects: Morocco; Rural areas; Towns; Valleys; Urban planning
Subjects: Taizz; Valleys; Yemen; Groundwater; Pollution
Subjects: Mecca; Saudi Arabia; Valleys; Groundwater; Pollution
Subjects: Jordan; Valleys
Subjects: Morocco; Valleys; Groundwater
Subjects: Valleys; Yemen; Plants
Subjects: Microbiology; Valleys; Wells; Pollution; Water
Subjects: Egypt; Jordan; Sinai peninsula; Valleys; Geology
Subjects: Geomorphology; Mathematics; Mechanics; Precipitation; Valleys
الاهتمامات البحثية: الأودية؛ الإحصائيات؛ التضاريس؛ الموارد المائية؛ الجغرافيا