(3GddeY aj GdYQHjI (B/s - (3Hf Lfj, YKeGf Hf Lfj GdehUdj,s (3J(B. 392 (3g`(B.s; (3GdeDef , MGeO s ((3GdbGgQI (B:s (3YGde GdcJH,s, 1985)
Keywords: (3GddZI GdYQHjIs -- (3fMhs