(3JaSjQ GdBjI GdcQjeI (B((3dG Edg EdG CfJ SHMGfc Efj cfJ ef GdXGdejf(B) /s - (3GHf JjejI, CMeO Hf YHO GdMdje Hf YHO GdSdGe,s 661-728 (3g`(B.s; (3MGeO, YHO GdYdj YHO GdMejOs ((3HheHGj (B- (3GdgfO (B:s (3GdOGQ GdSdajI,s, 1986)
Keywords: (3GdbQBfs -- (3JaSjQs