El-Sheikh, M. (2011). OPTIMIZATION AND UPGRADING WASTEWATER TREATMENT PLANTS. test, 39(No 4), 697-713. doi: 10.21608/jesaun.2011.127692
Mahmoud A. El-Sheikh. "OPTIMIZATION AND UPGRADING WASTEWATER TREATMENT PLANTS". test, 39, No 4, 2011, 697-713. doi: 10.21608/jesaun.2011.127692
El-Sheikh, M. (2011). 'OPTIMIZATION AND UPGRADING WASTEWATER TREATMENT PLANTS', test, 39(No 4), pp. 697-713. doi: 10.21608/jesaun.2011.127692
El-Sheikh, M. OPTIMIZATION AND UPGRADING WASTEWATER TREATMENT PLANTS. test, 2011; 39(No 4): 697-713. doi: 10.21608/jesaun.2011.127692