Looking for an inexpensive accomodation for 3 girls for the summer semester

We are 3 female students from Slovenia who are going to study in University of Zadar from the 25th of February until the 15th of July and would need an accomodation that is either close to the University or has a nearby bus station that would take us as close to the University as possible. Our desired price range would be ca. 300 € with costs included. We are non smokers, quiet, can cook for ourselves, but a kitchen is not mandatory.