ARIDAH, Ahmad M. AN ECONOMIC STUDY OF ESTIMATING COST FUNCTION DATES PRODUCTION IN WADI AL-AJAL , SOUTHWESTERN LIBYA . Diyala Agricultural Sciences Journal , [S. l.], v. 6, n. 1, p. 65–75, 2014. Disponível em: https://journal.djas.uodiyala.edu.iq/index.php/dasj/article/view/1660. Acesso em: 2 may. 2024.