Volume 21, Issue 2, May and June 2010, Pages 46-51
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Volume 16, Issue 2, May and June 2005, Pages 82-87
Fariborz Riahi; Mahboube Radgoodarzi
Volume 14, Issue 1, May 2003, Pages 46-50
F Riahi; F Payami; M Rad Goodarzi; M Zare; Sh Saberi