(3GdJGQjN GdSjGSi deOjfI GTHjdjI ai GdYUQ GdGehi (B/ s - (3MeOi YHOGdefYe eMeO MSjfs ([S.N] : (3eDSSI THGH GdLGeYI , s, 1987)
Keywords: (3GdJGQjN GdGSdGeis; (3GdOhdI GdGehjIs; (3aJM GdGfOdSs; (3GTHjdjIs