(3eaghe GddjGbI GdHOfjI h CHYGOgG GdeNJdaI (B/ s - (3GdMjGQj, MSfs; (3GdQHVj, gGfjs; (3GdOjQj, Ydjs ((3EQHO (B:s (3OGQ GdCed ddfTQ h GdJhRjY,s, 1987)
Keywords: (3GdCdYGH GdQjGVjIs; (3GdJQHjI GdHOfjIs