EFFICIENCY ANALYSIS OF OPEN FIELD TOMATO PRODUCTION IN PUNJAB: A NON PARAMETRIC DATA ENVELOPMENT ANALYSIS APPROACH. Pakistan Journal of Science, [S. l.], v. 69, n. 3, 2017. DOI: 10.57041/vol69iss3pp%p. Disponível em: https://paas-pk.org/index.php/pjs/article/view/537. Acesso em: 16 feb. 2026.