(3GdGJUGd HGdLeGgjQ (B/ s - (3aDGO cGed (B((3eJQLe(B)s; (3GfhQ GdeTQi (B((3eJQLe(B)s; (3UdGM YRGdOjf (B((3eJQLe(B)s; (3HGQfh, GQjcs ([S.N] : (3ecJHI eUQ , s, 1980)
Keywords: (3GdUMGaIs; (3GdGJUGds; (3hSGFd GdGYdGes; (3GdhSGFd GdSeYjI hGdHUQjIs