(3GdGOH GdYQHj aj GdGfOdS JWhQg(B- (3ehVhYGJg hGTgQ GYdGeg (B/ s - (3Ydi eMeO SGdes ([S.N] : (3GdOGQ GdYQHjI ddehShYGJ , s, 1989)
Keywords: (3GdGOH GdYQHis