Chindah, A. C., S. A. Braide, F. Obianefo, e C. C. Obunwo. “WATER QUALITY AND PERIPHYTON COMMUNITY OF A STREAM SYSTEM RECEIVING MUNICIPAL WASTE DISCHARGES IN RIVERS STATE, NIGER DELTA, NIGERIA”. Estudos De Biologia, vol. 28, nº 64, novembro de 2006, doi:10.7213/reb.v28i64.22734.