Sayadat, M. N. (2011). Catholic social teachings: An analytical study on Pope John Paul II's encyclical "Sollicitudo Rei Socialis". Kulliyyah of Islamic Revealed Knowledge and Human Sciences, International Islamic University malaysia.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Sayadat, Mohammad Nazmus. Catholic Social Teachings: An Analytical Study on Pope John Paul II's Encyclical "Sollicitudo Rei Socialis". Kuala Lumpur: Kulliyyah of Islamic Revealed Knowledge and Human Sciences, International Islamic University malaysia, 2011.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Sayadat, Mohammad Nazmus. Catholic Social Teachings: An Analytical Study on Pope John Paul II's Encyclical "Sollicitudo Rei Socialis". Kulliyyah of Islamic Revealed Knowledge and Human Sciences, International Islamic University malaysia, 2011.