Aridah, A. (2014). AN ECONOMIC STUDY OF ESTIMATING COST FUNCTION DATES PRODUCTION IN WADI AL-AJAL , SOUTHWESTERN LIBYA .. Alustath, 6(1), 65-75.
Ahmad Aridah. "AN ECONOMIC STUDY OF ESTIMATING COST FUNCTION DATES PRODUCTION IN WADI AL-AJAL , SOUTHWESTERN LIBYA .". Alustath, 6, 1, 2014, 65-75.
Aridah, A. (2014). 'AN ECONOMIC STUDY OF ESTIMATING COST FUNCTION DATES PRODUCTION IN WADI AL-AJAL , SOUTHWESTERN LIBYA .', Alustath, 6(1), pp. 65-75.
Aridah, A. AN ECONOMIC STUDY OF ESTIMATING COST FUNCTION DATES PRODUCTION IN WADI AL-AJAL , SOUTHWESTERN LIBYA .. Alustath, 2014; 6(1): 65-75.


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