(3EHQGgje GdeHjVjf (B: s (3MjGJg h TYQg (B/ s - (3eHjVjf, MSf Ydjs; (3GdNWHG, ahRj adGMs ((3YeGf (B:s, 1986)
Keywords: (3GdTYQ GdMOjKs; (3GdCQOfs