(3cJH GdaQGTI (B: (3GdNTH (B/ s - (3Qajb eWdbs ((3HjQhJ (B: s (3ecJHI dHfGf , s, 1987)
Keywords: (3GOH GdGWaGds; (3GdJKbja GdPGJis; (3cJH GdGWaGds; (3GdNTHs