SOLAR ENERGY <br/><br/>
THE INTERRELATIONSHIP  AND CHARACTERISTIC DISTRIBUTION OF DIRECT ,DIFFUSE AND TOTAL SOLAR RADIATION 

 -    JUIL .1960 
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<br/><br/>   THE INTERRELATIONSHIP  AND CHARACTERISTIC DISTRIBUTION OF DIRECT ,DIFFUSE AND TOTAL SOLAR  RADIATION RECOMMENDATIONS AND SUGGESTED TECHNIQUE FOR THE MANUFACTURE OF INEXPENSIVE SOLAR COOKERS