1. Solar energy and the Third World;AGARWAL;New Scientist,1978
2. The forgotten energy crisis;AGARWAL;New Scientist,1983
3. Water;AMBROGGI;Scientific American,1980
4. Toward solving problems of environmental stress for developing countries;AYODELE COLE;Environmental Management,1979
5. An agroclimatology survey of a semiarid area in Africa south of the Sahara;COCHEME;World Meteorological Office,1967