ANYANWU, S.O. Comparative Analysis of Economic Efficiency between Low and High External Input Technology Agriculture in a Harsh Macroeconomic Environment of Imo State, Nigeria. International Journal of Agricultural Management and Development, [S. l.], v. 1, n. 4, p. 115–122, 2011. Disponível em: https://oiccpress.com/ijamad/article/view/6523. Acesso em: 30 may. 2026.