DRUNPP stands for: DRUŠTVO ZA UNAPREĐENJE I RAZVOJ NASTAVNIH I POSLOVNIH PROCESA in Bosnian, or, translated: SOCIETY FOR THE PROMOTION AND DEVELOPMENT OF TEACHING AND BUSINESS PROCESSES
I covered this report here ‘Citation cartel uncovered in Bosnian journals’ http://www.rsc.org/chemistryworld/2013/01/serbia-bosnia-predatory-journal-citation-cartel
They seem to have launched another journal since, the Balkan Journal of Health Science.