Ezekwe, Ifeanyichukwu Clinton, Ahamefula Sunday Ezekwe, e Path Oweikeye Endoro. 2013. “Biological Contaminants in the River Nun and Environmental Ethics of Riverside Communities in the Niger Delta: The Case of Amassoma, Bayelsa, Nigeria”. Estudos De Biologia 35 (84). https://doi.org/10.7213/estud.biol.7849.