1[1]NegowiA.B.Rwelamila P.D.,Holistic Approach to Occupational Health and Safety and Environmental Impacts,In:Haupt,TheoC,Rwelamila P D.eds,Proceedings of Health and Safety in Construction,Current and Future Challenges,Pentach:Cape Town,1997:151-161.
2[2]Haupt Y.C.,Coble R.J.,A Performance Approach to Construction Worker Safety and Health--A Survey of International Legislative Trends.In s Singh,eds,Proceedings of Creative Systems in Structural and Construction Engineerings,Balkema Rotterdam,2001:p381-386.