(3ef CSQGQ MQha GdLQ aj GdPcQ GdMcje (B/ s - (3GdNVQj, eMeO GdCejfs ((3GdbGgQI (B:s (3ecJHI hgHI,s, 1989)
Keywords: (3GdbQBf GdcQje(B.s; (3bhGYO GddZI(B.s; (3GddZI GdYQHjI(B.s