Al Shared، A. R.، و Maguire، J. (2001). The Evolution of Service Quality Concepts: A Critique of Schools of Thoughts, Measurement, and Models. الفكر الشرطي، مج10, ع3 ، 259 - 281. مسترجع من http://search.mandumah.com/Record/602313
Al Shared، Adel Rashid، و John Maguire. "The Evolution of Service Quality Concepts: A Critique of Schools of Thoughts, Measurement, and Models." الفكر الشرطي مج10, ع3 (2001): 259 - 281. مسترجع من http://search.mandumah.com/Record/602313