BEM, J. From Oil to Oil: A History of The Niger Delta Oil Economy from Palm Oil to Crude Oil, 1900 to 2019. Advances in Humanities and Contemporary Studies, [S. l.], v. 2, n. 2, p. 190–200, 2022. Disponível em: https://publisher.uthm.edu.my/periodicals/index.php/ahcs/article/view/4636. Acesso em: 4 oct. 2023.