(3djd GdSaQ (B/ s - (3CHh SGde, YeQs ((3YeGf (B:s (3hRGQI GdKbGaI h GdSjGMI h GdBKGQ (B- (3OGFQI GdKbGaI h Gdafhf,s, 1982)
Keywords: (3GdTYQ GdCQOfj GdMOjKs