Wangboje , O.M. “Heavy Metals in Heterobranchus Longifilis (Cuvier And Valenciennes, 1840) Cultured in Earthen Ponds in Selected Communities in Warri Metropolis, Nigeria”. Uganda Journal of Agricultural Sciences 18, no. 2 (June 1, 2018): 67–82. Accessed February 24, 2024. http://journal.naro.go.ug/index.php/ujas/article/view/153.