(3OjhGf YGeQ (B: s (3GdLRA GdKGfi fdGMe heSQMjGJ (B/ s - (3YGeQ eMeO HMjQis ((3GdbGgQI (B: s (3GdgjFI GdeUQjI GdYGeI ddcJGH , s, 1987)
Keywords: (3GdTYQ GdYQHis; (3GdYUQ GdMOjKs; (3OhGhjf hbUGFOs; (3GdTYQ GdeSQMis; (3GdTYQ GdJeKjdis