G. M. Alwan, D. (2008). pH-Control Problems of WastewaterTreatment Plants. , 4(2), 37-45.
Dr. G. M. Alwan. "pH-Control Problems of WastewaterTreatment Plants". , 4, 2, 2008, 37-45.
G. M. Alwan, D. (2008). 'pH-Control Problems of WastewaterTreatment Plants', , 4(2), pp. 37-45.
G. M. Alwan, D. pH-Control Problems of WastewaterTreatment Plants. , 2008; 4(2): 37-45.


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