(3GdeMQV GdUhQi (B/ s - (3YHO LGHQ eMjHSs; (3eCehf eMeO SdGeI (B: s; (3LGeYI GdbGgQI s (3cdjI GdMbhbs ((3GdbGgQI (B: s (3cdjI GdMbhb (B- (3LGeYI GdbGgQI ,s, 1989)
(3GWQhMI(B((3OcJhQGg(B) - (3LGeYI GdbGgQI (B- (3cdjI GdMbhb (B- (3bSe GdbGfhf GdLfGFj (B1989s
Keywords: (3GdbGfhf GdLfGFjs; (3GdeSGgeI GdeGOjIs; (3GdeMQV GdUhQis; (3eGgjI GdJMQjV GdUhQis; (3GdeSGgeI GdeYfhjIs; (3QSGFd LGeYjI s -- (3LGeYI GdbGgQI s -- (3cdjI GdMbhbs