Khen, H. M. (2016). Intelligence based investigation: Obstacles and strategies used in law enforcement agencies. Kulliyyah of Information and Communication Technology, International Islamic University Malaysia.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Khen, Han Ming. Intelligence Based Investigation: Obstacles and Strategies Used in Law Enforcement Agencies. Gombak, Selangor: Kulliyyah of Information and Communication Technology, International Islamic University Malaysia, 2016.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Khen, Han Ming. Intelligence Based Investigation: Obstacles and Strategies Used in Law Enforcement Agencies. Kulliyyah of Information and Communication Technology, International Islamic University Malaysia, 2016.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.