Volume 17, Issue 113, September 2014, Pages 15-23
10.22038/ijogi.2014.3386
Mahin Tafazoli; Sedigheh Yousefzadeh; Salmeh Dadgar
Volume 15, Issue 26, August 2012, Pages 8-14
10.22038/ijogi.2012.5639
Nahid Golmakani; Akram Esfalani; Maryam Kabirian