Zakaria bin Haji Ahmad. (1977). The police and political development in Malaysia: Change, continuity and institution-building of a "coercive" apparatus in a developing, ethically divided society. Massachusettes Institute of Technology.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Zakaria bin Haji Ahmad. The Police and Political Development in Malaysia: Change, Continuity and Institution-building of a "Coercive" Apparatus in a Developing, Ethically Divided Society. Massachusettes: Massachusettes Institute of Technology, 1977.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Zakaria bin Haji Ahmad. The Police and Political Development in Malaysia: Change, Continuity and Institution-building of a "Coercive" Apparatus in a Developing, Ethically Divided Society. Massachusettes Institute of Technology, 1977.