Public transportation and parking: http://www.zagreb-touristinfo.hr/travel-plan/traveling-in-town/public-transport-and-parking

Hotels near the Faculty of Humanities and Social Sciences: 

Fala $  – https://www.infozagreb.hr/en/travel-plan/accommodation/hotels/fala-en 

Internacional $$  – https://www.maistra.com/properties/hotel-international/#/ 

Private accommodation (apartments, rooms…)

https://www.infozagreb.hr/en/travel-plan/accommodation/private-accommodation

Hostels

There’s a nice number of nice hostels in Zagreb. You can check them out at: http://www.hostelworld.com/findabed.php/ChosenCity.Zagreb/ChosenCountry.Croatia

Zagreb – tourist info https://www.infozagreb.hr/en/