Hasnul Osman. (1984). The Central Staff Records of Public Services Department of Malaysia: A case study in institution building.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Hasnul Osman. The Central Staff Records of Public Services Department of Malaysia: A Case Study in Institution Building. 1984.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Hasnul Osman. The Central Staff Records of Public Services Department of Malaysia: A Case Study in Institution Building. 1984.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.