(3GJLGgGJ GdSjGSI GdLfGFjI hJWHjbGJgG aj GdeedcI GdYQHjI GdSYhOjI (B/s - (3OhMGf, SGde eMeOs; (3GdUjaj, YHO GdaJGM eUWais (1989)
(3jTJed Ydi EQLGYGJ HHdjhLQGajI(B.s
(3jTJed Ydi eSJNdU HGddZJjf GdYQHjI hGdEfLdjRjI(B.s
Keywords: (3GdLfGjGJ (B((3abg ESdGej(B)s -- (3GdSYhOjIs; (3GdbGfhf GdLfGFjs -- (3GdSYhOjIs; (3QSGdI LGeYjI (B((3eGLSJjQ(B)s