APA
The royal university of law and economics (RULE), . (2012). English for foundation year workbook. Phnom Penh: .
Chicago
The royal university of law and economics (RULE), . 2012. English for foundation year workbook. Phnom Penh: .
Harvard
The royal university of law and economics (RULE), . (2012). English for foundation year workbook. Phnom Penh: .
MLA
The royal university of law and economics (RULE), . English for foundation year workbook. Phnom Penh: . 2012.
