Abdul Karim, N. A., Mohamad Radzi, N. S., & Mohd Basri, S. M. (2015). Modelling Importance Performance Analysis (IPA) to improve service quality in luxury hotel / Nor Atiqah Abdul Karim, Nur Shuhada Mohamad Radzi and Siti Mariah Mohd Basri.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Abdul Karim, Nor Atiqah, Nur Shuhada Mohamad Radzi, و Siti Mariah Mohd Basri. Modelling Importance Performance Analysis (IPA) to Improve Service Quality in Luxury Hotel / Nor Atiqah Abdul Karim, Nur Shuhada Mohamad Radzi and Siti Mariah Mohd Basri. 2015.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Abdul Karim, Nor Atiqah, et al. Modelling Importance Performance Analysis (IPA) to Improve Service Quality in Luxury Hotel / Nor Atiqah Abdul Karim, Nur Shuhada Mohamad Radzi and Siti Mariah Mohd Basri. 2015.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.