(3GHh MjGf GdJhMjOj ; ajdSha GdGOHGA hGOjH GdadGSags - (3GdUHGM(B. (3eMeO Ydjs ((3OGQ GdcJH GdYdejIs (3HjQhJs, 1990)
Keywords: (3JQGLe s; (3GHh MjGf GdJhMjOj (B- (3JQGLe s