Keywords = Positions of openings and number of openings
| Number of Articles: 1 | ||
| 1 | Environmental Studies and Researches Institute, University of Sadat City, Egypt | |
| Volume 42, No 5, September and October 2014, Page 1138-1162 | ||
| Mohamed M. Rashwan; Aly Abdel Zaher Elsayed; Ali Mohamed Abdallah; Mahmoud Abdou Mahmoud Hassanean | ||
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