Volume 32, Issue 1, March 2013, Pages 77-82
10.30492/ijcce.2013.5907
Guangxiu Mao; Anfeng Zhu
Volume 27, Issue 4, December 2008, Pages 71-77
10.30492/ijcce.2008.6949
Layla Abadian; Azim Malekzadeh; Abbas Ali Khodadadi; Yadollah Mortazavi