1. Industrial imlication of the properties of brown coal;Allardice,1991
2. Petrology;Mackay,1991
3. Australia’s Coal Industryhttp://www.minerals.org.au/resources/coal/coal_mines_by_state
4. Chemical structure of Victorian brown coal;Verheyen,1991
5. Role of hydrogen bonds in the briquetting of lignite;Iyengar;Fuel,1957