Wheat Productivity, Efficiency, and Sustainability: A Stochastic Production Frontier Analysis. The Pakistan Development Review, [S. l.], v. 41, n. 4II, p. pp.643–663, 2002. DOI: 10.30541/v41i4IIpp.643-663. Disponível em: https://thepdr.pk/index.php/pdr/article/view/1865. Acesso em: 18 nov. 2025.