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- [8] PRESERVATION AND COMMERCIALIZATION OF MILK BY MEANS OF ADAPTED TECHNOLOGY AND USE OF SOLAR-ENERGY LEBENSMITTEL-WISSENSCHAFT & TECHNOLOGIE, 1979, 12 (02): : 124 - 126
- [9] AGRICULTURE AND THE POLICY OF USING SOLAR-ENERGY - FRENCH ETUDES RURALES, 1979, (76): : 128 - 129