of employed people per their core activity (as of 2017): Gallery International relations Twin towns — Sister cities Bački Petrovac is twinned with: Babušnica, Serbia Martin, Slovakia Nitra, Slovakia Ružomberok, Slovakia Stará Ľubovňa, Slovakia Vukovar, Croatia Kirchheim unter Teck, Germany See also List of places in Serbia List of cities, towns and villages in Vojvodina References Slobodan Ćurčić, Broj stanovnika Vojvodine, Novi Sad, 1996. External links Ján Kollár Grammar School Petrovec Online community Matica slovenská v Srbsku Vladimír Hurban Vladimírov Theatre Hlas Ľudu weekly magazine Places in Bačka Populated places in South Bačka District Municipalities and cities of Vojvodina Slovak communities in Serbia Towns in Serbia