パプアニューギニアの首相
1 2 3 4 “Background Note: Papua New Guinea”. US State Department (2007年4月). 2007年8月14日閲覧。
1 2 3 4 Dorney, Sean (2001). Papua New Guinea: people, politics and history since 1975. ABC Books. ISBN 0733309453
1 2 May, R.J. (2001). State and society in Papua New Guinea: the first twenty five years. Crawford House Publishing. ISBN 1863332049