கேள்வி: புரூணை சுல்தானகம் - மேலும் படிக்க என்பது என்ன?
பதில்: * [http://www.zum.de/whkmla/histatlas/seasia/haxbrunei.html Historical Atlas: History of Brunei] * [http://www.britishempire.co.uk/images2/sarawakmapboundaries.jpg Expanding Boundaries of Sarawak including territorial gains from the Sultanate of Brunei] * [https://sagc.sabah.gov.my/?q=ms/law-category/treaties-and-engagements-and-orders-page British treaties regarding North Borneo including cession agreement from the Sultanate of Brunei]