(3GdJbdHGJ GdGbJUGOjI(B.s (3Hjf GdSjGSI GdeGdjI hGdfbOjI (B/s - (3NVjQ YHGS GdegQs ((3LGeYI GdQjGV(B:s (3YeGO TDhf GdecJHGJ (B-(3LGeYI GdQjGV(B,s, 1981)
(3OQGSI JMdjdjI ehLRI ai GjWGQ GdfXQjI GdcjfRjIs
(3GdfU HGddZI GdYQHjIs
Keywords: (3GdSjGSI GdeGdjIs