Gravitas Research and Strategy Limited (August 2003) Evaluation of the Implementation of Paid Parental Leave. http://www.ers.dol.govt.nz/perentalleave/evaluation.html.
Gravitas Research and Strategy Limited（August 2003）Evaluation of the Implementation of Paid Parental Leave. http://www.ers.dol.govt.nz/parentalleave/evaluation.html.