By Bahgat A.B.G.   Helwa N.H.   Ahamd G.E.   El Shenawy E.T.   in Renewable Energy

ISSN:0960-1481|29|3|443-457

Elsevier‎(2004)‎

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By Helwa N. H.   Bahgat A. B. G.   Shafee A. M. R. El   Shenawy E. T. El   in Energy Sources

ISSN:1521-0510|22|1|35-44

Taylor & Francis Ltd‎(2000)‎

Access to resources Favorite 3.9949956

By Helwa N. H.   Bahgat A. B. G.   Shafee A. M. R. El   Shenawy E. T. El   in Energy Sources

ISSN:1521-0510|22|1|23-34

Taylor & Francis Ltd‎(2000)‎

Access to resources Favorite 3.9949956