(3CQHYI bQhf ef JGQjN GdYQGb GdMOjK (B: s (3cJGH jHMK Yf JGQjN GdYQGb aj GdYUhQ GdeXdeI (B/ s - (3dhfcQjc , SJjaf gHeSdj s; (3GdNjGW , LYaQ s ((3HZOGO (B: s (3ecJHI GdjbXI GdYQHjI , s, 1985)
Keywords: (3GdYQGb s -- (3JGQjN s -- (3GdYUQ GdMOjK s