Mohd Azlan Shah Sharifudin. (2011). A study of realisation of requirement type modal meaning in the writings of selected Malay ESL students. Kulliyyah of Islamic Revealed Knowledge and Human Sciences, International Islamic University Malaysia.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Mohd Azlan Shah Sharifudin. A Study of Realisation of Requirement Type Modal Meaning in the Writings of Selected Malay ESL Students. Kuala Lumpur: Kulliyyah of Islamic Revealed Knowledge and Human Sciences, International Islamic University Malaysia, 2011.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Mohd Azlan Shah Sharifudin. A Study of Realisation of Requirement Type Modal Meaning in the Writings of Selected Malay ESL Students. Kulliyyah of Islamic Revealed Knowledge and Human Sciences, International Islamic University Malaysia, 2011.