«Gender and environmental influences on visual acuity in Owerri, Nigeria», NJPS, vol. 29, n.º 1, pp. 017 –022, mai. 2021, Acedido: 8 de julho de 2026. [Online]. Disponível em: https://www.ojshostng.com/index.php/njphysiologicalsciences/article/view/1802