(3RghQ GdbWa (B/ s - (3YeGOGdOjf hUais; (3eMehO NWGHs ([S.N] : (3efTGI GdeYGQa GdGSdGejI , s, 1989)
Keywords: (3GdRQGYIs; (3GdGaGJ GdRQGYjIs; (3GdRghQs; (3JdbjM GdfHGJs; (3JcGKQ GdRghQs