Aditiawarman, U. (2007). Factors influencing online learning acceptance in Indonesian Open Learning University - Universitas Terbuka (UT). Kulliyyah of Information and Communication Technology, International Islamic University Malaysia.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Aditiawarman, Umar. Factors Influencing Online Learning Acceptance in Indonesian Open Learning University - Universitas Terbuka (UT). Gombak, Selangor: Kulliyyah of Information and Communication Technology, International Islamic University Malaysia, 2007.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Aditiawarman, Umar. Factors Influencing Online Learning Acceptance in Indonesian Open Learning University - Universitas Terbuka (UT). Kulliyyah of Information and Communication Technology, International Islamic University Malaysia, 2007.