(3GdNOjYI GdeGdjI GdcHQi(B: (3GdGbJUGO GdSjGSi dTQcGJ JhXja GdGehGd (B/ s - (3eMehO YHOGdaVjds ([S.N] : (3OGQ GdeSJbHd GdYQHi , s, 1989)
Keywords: (3GdGbJUGOs; (3GdGSJKeGQs; (3GdGbJUGO GdSjGSis; (3TQcGJ JhXja GdGehGds