Suryanto. (2004). An analysis of the utilisation of the English subject-verb agreement form in context-embedded and context-reduced texts. Kulliyyah of Islamic Revealed Knowledge and Human Sciences, International Islamic University Malaysia.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Suryanto. An Analysis of the Utilisation of the English Subject-verb Agreement Form in Context-embedded and Context-reduced Texts. Gombak, Selangor: Kulliyyah of Islamic Revealed Knowledge and Human Sciences, International Islamic University Malaysia, 2004.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Suryanto. An Analysis of the Utilisation of the English Subject-verb Agreement Form in Context-embedded and Context-reduced Texts. Kulliyyah of Islamic Revealed Knowledge and Human Sciences, International Islamic University Malaysia, 2004.