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Dlamini, Derrick S.; Tesha, John Michael; Vilakati, Gcina D.; Mamba, Bhekie B.; Mishra, Ajay K.; Thwala, Justice M.; Li, Jianxin . (2020). A critical review of selected membrane- and powder-based adsorbents for water treatment: Sustainability and effectiveness. Journal of Cleaner Production, (), 123497–. doi:10.1016/j.jclepro.2020.123497 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research