S. Akar, Z. (2010). The Role of Six sigma in improving the total performance to Hospital. University of Basrah - Journals Management System, 3(6), 26-52.
Zainab S. Akar. "The Role of Six sigma in improving the total performance to Hospital". University of Basrah - Journals Management System, 3, 6, 2010, 26-52.
S. Akar, Z. (2010). 'The Role of Six sigma in improving the total performance to Hospital', University of Basrah - Journals Management System, 3(6), pp. 26-52.
S. Akar, Z. The Role of Six sigma in improving the total performance to Hospital. University of Basrah - Journals Management System, 2010; 3(6): 26-52.