(3GdJYde (B/ s - (3SGQfha G(B. (3eOfjcs; (3ghGQO Q(B. (3jhdjhs; (3GdjRGHK a(B. (3dhaJSs; (3eMeO YeGOGdOjf GSeGYjd (B((3eJQLe(B)s ([S.N] : (3OGQ GdTQhb , s, 1989)
Keywords: (3GdJYdjes; (3Yde GdfaSs; (3GdJYdes; (3GdJPcQs; (3GdOGaYjIs