(3GdYdGL HGdJeQ hGdQWHs (3UMI faSjI(B. (3MjhjI LfSjI(B. (3bhI LSeGfjIs - (3YHO GdSdGe, fHjd Ydjs ((3GdbGgQIs (3OGQ GdWdGFYs, 1999)
(3GdeMJhjGJ (B: (3fNjd GdHdM (B-- (3GdHdM h GdJeQ h GdCgejI GdGbJUGOjI (B-- (3RQGYI GdfNjd (B-- (3GdbjeI GdZPGFjI ddHdMs
(3eJhGaQ fSNJjf dYGe (B1992 (3ai GdecJHI GdQFjSjIs
1 3 12 13 18 20
Keywords: (3GdHdMs; (3GdJZPjIs; (3GdUMI GdYGeIs; (3GdfNjds