(3GdejcQhceHjhJQ hGdHUQjGJs - (3HGSd JaGMI(B.s; (3HGSd JaGMI(B.s ((3HjQhJ (B:s (3OGQ GdQGJH GdLGeYjI(B,s, 1987)
(3GjV(B.s
(3GdHK GdeSJbje ddVhA (B.s
Keywords: (3GdHUQjGJ hGdceHjhJQ(B.s