(3eaJQVGJ GdLQjeI (B:s (3eOdhdgG(B-(3WHjYJgG(B-(3PGJjJgG (B/s - (3MSfjf CHQGgje UGdM YHjOs; (3LGeYI GdbGgQIs (3cdjI GdMbhbs ((3GdbGgQI(B:s (3cdjI GdMbhb(B-(3LGeYI GdbGgQI,s, 1979)
1
Keywords: (3GdbGfhf GdLfGFjs; (3eaJQVGJ GdLQjeIs; (3GdJUQa GdbGfhfjs; (3LQjeI GdQThIs; (3LQjeI GdSQbIs; (3GdbGYOI GdLfGFjIs; (3CQcGf GdLQjeIs; (3GdXQha GdeNaaIs; (3GdXQha GdeTOOIs