(3GdbHV Ydi GdCTNGU (B: s (3MGdGJg, TQhWg, VeGfGJg (B/s - (3eMehO fLjH MSfis ((3GdbGgQI (B:s (3eWHYI LGeYI GdbGgQI hGdcJGH GdLGeYi (B,s, 1994)
(3UGOQ Yf eQcR HMhK hOQGSGJ ecGaMI GdLQjeI heYGedI GdeLQejf(B. s
(3GdfU HGddZI GdYQHjIs
Keywords: (3bGfhf LfGFjs; (3GdLQGFe GdeGSI HGdCTNGUs