ENDURANCE , Keyamo; NATHAN, Emmanuel. 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: http://journalsglobal.com/index.php/jgeb/article/view/59. Acesso em: 2 apr. 2025.