  We perform an update of our previous analysis on the constraints on possible
deviations of Hbb coupling from its Standard Model value, arising from a
scalar-pseudoscalar mixing. In this paper we include a complete simulation of
the process e+ e- -> b bbar e+ e- and combine it with our previous results to
obtain tighter bounds on the deviations of the parameters describing this
coupling that could be measured at the Next Linear Collider.
