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- [14] ECONOMIC BENEFITS OF POTABLE WATER SUPPLIES IN RURAL-AREAS OF DEVELOPING-COUNTRIES JOURNAL AMERICAN WATER WORKS ASSOCIATION, 1975, 67 (06): : 314 - 317
- [17] PHOTO-VOLTAIC POWER-SYSTEMS FOR RURAL-AREAS OF DEVELOPING-COUNTRIES SOLAR CELLS, 1979, 1 (01): : 65 - 79
- [20] SOCIAL AND ECONOMICAL ASPECTS OF THE INTRODUCTION OF GASIFICATION TECHNOLOGY IN THE RURAL-AREAS IN DEVELOPING-COUNTRIES ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1979, (SEP): : 145 - &