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Yinghua Song; Yi Liu; Shengming Chen; Hongxia Qin; Hui Xu
Volume 31, Issue 1, March 2012, Pages 43-52
Adams Udoji Itodo; Funke Wosilat Abdulrahman,; Lawal Gusau Hassan; Ugbede Itodo Happiness
Volume 30, Issue 2, June 2011, Pages 15-22
Hossein Faghihian; Massoud Nejati-Yazdinejad
Volume 29, Issue 2, June 2010, Pages 67-84
Rasool Mohammadikhah; Hossein Abolghasemi; Ali Mohebbi,
Volume 23, Issue 1, April 2004, Pages 51-56
Nasser Modirshahla; Sammad M. Tabatabaii
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