The construction of all irreducible modules of the
symmetric groups over an arbitrary field which reduce to Specht
modules in the case of fields of characteristic zero is given by
G. D. James. Hal\i c\i o{ğ}lu and Morris describe a possible
extension of James' work for Weyl groups in general, where Young
tableaux are interpreted in terms of root systems. In this paper,
we further develop the theory and give a possible extension of
this construction for finite reflection groups which cover the
Weyl groups.