Altowayti, W.A.H. and Shahir, S. and Eisa, T.A.E. and Nasser, M. and Babar, M.I. and Alshalif, A.F. and AL-Towayti, F.A.H. (2022) Smart Modelling of a Sustainable Biological Wastewater Treatment Technologies: A Critical Review. Sustainability (Switzerland), 14 (22). ISSN 20711050