Vušković P. Analysis of the Fluctuation of the Number of ISO 9001:2015 Certificates in the Republic of Croatia and Assessment of Satisfaction of Business Organisations Leadership with the Certificate. OE [Internet]. 14. julij 2022 [citirano 24. november 2025];66(4):40-9. Dostopno na: https://old.journals.um.si/index.php/oe/article/view/2118