(3GdfRGY GdeSdM hGdbGfhf GdOhdj GdYGe (B/s - (3MeGO, ceGds; (3OjH, LhQLs ((3HjQhJ (B:s (3eLO GdeDSSI GdLGeYjI ddOQGSGJ hGdfTQ hGdJhRjY,s, 1997)
(3jTJed Ydi edGMb(B.s
(3jTJed Ydi EQLGYGJ HHdjhLQGajI(B.s
Keywords: (3fRY GdSdGMs; (3GdbGfhf GdOhdj GdYGes; (3GdefGRYGJ GdOhdjIs