Jelaskan Sumber sekunder dari Sejarah Brunei dalam bahasa melayu

Ongkili, James P.  "Ancient Chinese Trading Links."  East Malaysia and Brunei.  Ed.  Wendy Hutton.  Tuttle Publishing, 2001.

Wright, Leigh.  "Brunei: An Historical Relic."  Journal of the Hong Kong Branch of the Royal Asiatic Society.  Vol. 17 (1977).