Volume 27, Issue 2, June 2008, Pages 23-31
10.30492/ijcce.2008.6994
Vahid Samavati; Sayed Hadi Razavi; Sayed Mohammad Mousavi
Volume 16, Issue 1, June 1997, Pages 19-21
10.30492/ijcce.1997.10328
Mohammad Saleem Khan; Akhtar Saeed