Nor Asiah Omar, Muhamad Azrin Nazri.  (2019).  Firm sustainability through the concept of Khalifah.  - .  442-462. 

Muhamad Azrin Nazri, Nor Asiah Omar.  (2019).  Takaful: concept and development.  - .  417-430. 

Muhamad Azrin Nazri, Nor Asiah Omar.  (2018).  Entrepreneurship orientation: critical review.  - Islamic Finance and Wealth Management.  46-62. 

Nor Asiah Omar, Muhamad Azrin Nazri, Zizah Che Senik.  (2009).  Chapter 3: Relationship between Service Quality, Satisfaction, Trust and Loyalty in Childcare Centre.  - .  69-105. 

Norzalita Abd Aziz, Nor Asiah Omar, Zizah Che Senik and Muhammad Azrin Nazri.  (2009).  Services Quality Impact on Customer Satisfaction and Repurchase Intention in Motor Takaful Scheme.  - .  49-68 (Bab 3).