Head T: Ministry of National Development(PDF). Budget 2008: Revenue and Expenditure Estimates. Ministry of Finance. February 2010 [14 September 2008]. (原始内容存档(PDF)于2016-03-03).
Head T: Ministry of National Development(PDF). Budget 2008: Revenue and Expenditure Estimates. Ministry of Finance. February 2010 [14 September 2008]. (原始内容存档(PDF)于2016-03-03).