^Hywel David Evans – Biographical Register of Members of the Parliament of Western Australia. Retrieved 22 May 2016. نسخة محفوظة 07 أبريل 2018 على موقع واي باك مشين.
^Black، David؛ Prescott، Valerie (1997). Election statistics : Legislative Assembly of Western Australia, 1890-1996. Perth, [W.A.]: Western Australian Parliamentary History Project and Western Australian Electoral Commission. ISBN:0730984095.
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