Αkpan Uwem Jonah. Nyong Essien and the Evolution of Nigeria. AKSU Journal Of History & Global Studies, Nigeria, v. 1, n. 1&2, p. 218–247, 2014. DOI: 10.60787/aksujhgs.vol1no1&2.28. Disponível em: https://aksujhgs.org.ng/index.php/home/article/view/28. Acesso em: 29 nov. 2025.