Krželj-Čolović, Zorica, Iris Mihajlović, and Ivona Milić-Beran. 2016. “CLUSTERIZATION – A FACTOR OF EFFICIENCY IN SMALL AND MEDIUM HOSPITALITY ENTERPRISES”. Ekonomski vjesnik/Econviews - Review of Contemporary Business, Entrepreneurship and Economic Issues 29 (2):367-80. https://hrcak.srce.hr/ojs/index.php/ekonomski-vjesnik/article/view/3968.