ERCEG, Aleksandar; DOTLIĆ, Predrag; MIKUŠ, Monika. THE 20 KEYS METHODOLOGY – CONTINUOUS IMPROVEMENT FOR ORGANIZATIONAL EFFICIENCY. Studia Universitatis Babeș-Bolyai Oeconomica, [S. l.], v. 63, n. 1, p. 20–36, 2018. DOI: 10.2478/subboec-2018-0002. Disponível em: https://studia.reviste.ubbcluj.ro/index.php/subboeconomica/article/view/2683. Acesso em: 5 feb. 2025.