(3GdbGfhf GdHMQj aj OhdI GdEeGQGJ GdYQHjI GdeJMOI (B:s (3OQGSI ebGQfI HbhGfjf Ohd eLdS GdJYGhf GdNdjLj (B/s - (3ZfGje, MSjf jhSas ((3OHj, GdEeGQGJ GdYQHjI GdeJMOI (B:s (3LGeYI GdEeGQGJ GdYQHjI GdeJMOI,s, 1990)
(3HHdjhLQGajI (B: (3U(B. 403-408.s
Keywords: (3GdbGfhf GdHMQjs -- (3GdEeGQGJ GdYQHjI GdeJMOIs; (3GdbGfhf GdHMQjs -- (3Ohd GdNdjL GdYQHjIs