توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Mohd Firdaus bin Md Hamsin. (2008). State legislative assembly by-elections in Kelantan: Issues and trends, 1990-2005. Kulliyyah of Islamic Revealed Knowledge and Human Sciences, International Islamic University Malaysia.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Mohd Firdaus bin Md Hamsin. State Legislative Assembly By-elections in Kelantan: Issues and Trends, 1990-2005. Gombak, Selangor: Kulliyyah of Islamic Revealed Knowledge and Human Sciences, International Islamic University Malaysia, 2008.

توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)

Mohd Firdaus bin Md Hamsin. State Legislative Assembly By-elections in Kelantan: Issues and Trends, 1990-2005. Kulliyyah of Islamic Revealed Knowledge and Human Sciences, International Islamic University Malaysia, 2008.