Hairuddin, S. N. (2010). The study of lyrical content based on Islamic view focusing on the halal and haram. Case study: The healer/ hip-hop by Erykah Badu, insya Allah by Maher Zain and shout to the lord by Darlene Zschech / Siti Nur'amalina Hairuddin.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Hairuddin, Siti Nur'amalina. The Study of Lyrical Content Based on Islamic View Focusing on the Halal and Haram. Case Study: The Healer/ Hip-hop by Erykah Badu, Insya Allah by Maher Zain and Shout to the Lord by Darlene Zschech / Siti Nur'amalina Hairuddin. 2010.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Hairuddin, Siti Nur'amalina. The Study of Lyrical Content Based on Islamic View Focusing on the Halal and Haram. Case Study: The Healer/ Hip-hop by Erykah Badu, Insya Allah by Maher Zain and Shout to the Lord by Darlene Zschech / Siti Nur'amalina Hairuddin. 2010.