Ezekwe, I.C., Chima, G.N. e Ikogori, G. 2013. An investigation of selected microbial pollutants in groundwater sources in Yenegoa Town, Bayelsa, Nigeria. Estudos de Biologia. 35, 84 (nov. 2013). DOI:https://doi.org/10.7213/estud.biol.7847.