& ET AL., Barbaz. MEASURING RETURNSS TO SCALE, DISTRIBUTION EFFICIENCY AND ESTIMATING WHEAT PRODUCTION FUNCTION IN DHI QAR PROVINCE. IRAQI JOURNAL OF AGRICULTURAL SCIENCES, [S. l.], v. 50, n. 6, 2019. DOI: 10.36103/ijas.v50i6.846. Disponível em: https://jcoagri.uobaghdad.edu.iq/index.php/intro/article/view/846.. Acesso em: 5 may. 2024.