K. ABED ALASADY, R.; AWAD ALAWADY, Z. S. Feasibility of Spirogyra majuscula and Cladophora fracta Algae on Growth with Different Concentrations of Sewage and Bioethanol Production. Al-Qadisiyah Journal of Pure Science, v. 22, n. 3, p. 129 - 141, 25 May 2018.