(3PQGFY GdYUHjGJ GdYfUQjI(B:s (3aj GKGQI GdMQhH hMedGJ fGOQ TGg Ydi GdYQGb aj QhGjI TGgO YjGf(B/s - (3GdGKQj,eMeO HgLIs ((3HZOGO(B:s (3GdeLeY GdYdej GdYQGbj,s, 1981)
Keywords: (3GdYQGb(B-(3JGQjNs