ENDURANCE , K. .; NATHAN, E. . An analysis of production theory in the agricultural and service sectors of Nigerian economy, 1981-2019. Journal of Global Economics and Business, [S. l.], v. 2, n. 6, p. 69–88, 2021. Disponível em: https://journalsglobal.com/index.php/jgeb/article/view/59. Acesso em: 22 dec. 2024.