(3NdGa GdGNaT GdGhSW Yf SjHhjI(B: (3ef NdGd TQhM GdcJGH MJi fgGjI GdbQf GdQGHY GdgLQi (B/ s - (3gOi LfghjTis ((3GdGQOf (B: s (3ecJHI OGQ GdKbGaI , s, 1993)
Keywords: (3GdfMhs; (3GddZI GdYQHjIs; (3GdOdGdI(B- (3Ydes; (3GddZI GdYHQjIs