(3GdSMQ h GdOjf (B: s (3OQGSI aj JMdjd GdeVehf (B/ s - (3Sdje, Sdhi Ydjs ((3GdbGgQI (B:s (3ecJHI hgHg,s, 1989)
Keywords: (3GdSMQs; (3GdESdGe h GdSMQs