Vol.14, No . 15, April 1999, Pages 55-57
T. Ebtekar
Vol.12, Issue 12, January 1997, Pages 73-75
Taghi Initiative
Vol. 10, No . 7, July 1994, Pages 37-41
vol. 8, Issue 2, July 1991, Pages 21-24
T. Abtakar