HÁRY, András; KLUJBER, Dénes. Assessment Approaches and Strategies for the Quality System Improvement. Periodica Polytechnica Social and Management Sciences, [S. l.], v. 9, n. 2, p. 127–139, 2001. Disponível em: https://pp.bme.hu/so/article/view/1729. Acesso em: 6 may. 2024.