THE MOST SUITABLE CROP STRUCTURE AND ITS CONTRIBUTION TO REDUCING THE FOOD GAP AND ACHIEVING FOOD SECURITY IN SOUTH SINAI GOVERNORATE USING THE METHOD OF PROGRAMMING OBJECTIVES.

EFFECT OF SOME ORGANIC AND BIOINSECTICIDES ON ADULT OF CULEX PIPIENS MOSQUITOES IN CAIRO GOVERNORATE, EGYPT.

SOME FACTORS AFFECTING THE ROLE OF AGRICULTURAL EXTENSION IN DEVELOPING RURAL LEADERS' INFORMATION ON CLIMATE CHANGE AND ITS ENVIRONMENTAL EFFECTS IN THE EGYPTIAN COUNTRYSIDE