Volume 39, Issue 4, March 2014, Pages 137-148
10.22059/jes.2014.36467
Hamideh Sadat Mirvakili; Nasser Hadjizadeh Zaker
Volume 38, Issue 3, December 2012, Pages 37-46
10.22059/jes.2012.29147
Ahmad Tarassoli; Abbas Esmaili Sari; Toraj Vali nassab
Volume 34, Issue 48, February 2009
Volume 30, Issue 34, June 2004