Erbhijakpor, P. S. O. (2012). Students perception and understanding of the qalb: A phenomenological study of IIUM Institute of Education students. Institute of Education, International Islamic University Malaysia.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Erbhijakpor, Perkins Shuaibu Oghenenyerhovwo. Students Perception and Understanding of the Qalb: A Phenomenological Study of IIUM Institute of Education Students. Kuala Lumpur: Institute of Education, International Islamic University Malaysia, 2012.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Erbhijakpor, Perkins Shuaibu Oghenenyerhovwo. Students Perception and Understanding of the Qalb: A Phenomenological Study of IIUM Institute of Education Students. Institute of Education, International Islamic University Malaysia, 2012.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.