5Zarei Mohamed, et al. Managing Contractor HSE Performance in PCSB, SPE61003[A]. Proceedings of SPE (Society of Petroleum Engineers) International Conference on Health Safety and Environment in Oil and Gas Exploration and Production[C].Stavanger, Norway, 26～28 June 2000
6Price J.G., Vega T.A., et al.. Safeguarding Our Assets Through Contractor Partnership, SPE73831[A]. Proceedings of SPE (Society of Petroleum Engineers) International Conference on Health Safety and Environment in Oil and Gas Exploration and Production[C],Kuala Lumpur, Malaysia, 20～22 March 2000
