1. Borkert, M., & Bosswich, W. (2007). Migration Policy-Making in Germany - between national reluctance and local pragmatism? (Working paper No. 20). https://migrant-integration.ec.europa.eu/sites/default/files/2008-08/docl_1453_955927173.pdf
2. Butković, H., Samardžija, V., & Rukavina, I. (2022). Foreign workers in Croatia: Challenges and opportunities for economic and social development. Institute for Development and International Relations. https://irmo.hr/wp-content/uploads/2022/03/Strani-radnici-u-Hrvatskoj.pdf
3. Čizmić, I., Sopta, M., & Šakić, V. (2005). Iseljena Hrvatska [Croatian Emigration]. Golden Marketing - Tehnička knjiga.
4. Croatian Bureau of Statistics (2019a). Natural population change in Croatia. [Data set]. https://podaci.dzs.hr/hr/arhiva/stanovnistvo/prirodno-kretanje-stanovnistva-republike-hrvatske/
5. Croatian Bureau of Statistics. (2001). Popis stanovništva 2001. Metodološka objašnjenja [2001 Population Census. Notes on Methodology]. https://web.dzs.hr/Hrv/censuses/Census2001/census_met.htm