(3JfGRY GdbhGfjf aj SfOGJ GdTMf heTGQWGJ GdGjLGQ (B/ s - (3UdGM eMeO GdSYjO GdebOes; .; (3LGeYI GdbGgQIs (3cdjI GdMbhbs ((3GdCScfOQjI(B:s (3cdjI GdMbhb (B- (3LGeYI GdGScfOQjI,s, 1980)
(3CWQhMI (B((3OcJhQGg(B)-(3LGeYI GdGScfOQjI, cdjI GdMbhb (B1980. s
(3jTJed Ydi EQLGYGJ HjHdjhLQGajI(B: 486 -506 (3UaMIs
Keywords: (3GdbGfhf GdJLGQjs; (3bGfhf GdYdes; (3GdbGfhf GdHMQjs; (3QSGFd LGeYjIs -- (3LGeYI GdCScfOQjIs -- 1980