1. Andersson, A. E., Pettersson, L., & Strömquist, U. (2007). European Metropolitan Housing Markets. Springer Science & Business Media. Retrieved from https://books.google.lv/books?id=Zu65-j1CgNEC&pg=PA63&lpg=PA63&dq=finland+regulation+of+rental+housing&source=bl&ots=hwnCPD1Vb7&sig=7AQSDuWmjpOCFVW-zfVrzYIBp_w&hl=lv&sa=X&ved=0ahUKEwi1oaSYsOvXAhWCYpoKHQkpCrUQ6AEIbzAJ#v=onepage&q&f=false
2. City of Helsinki. (2017). Rental dwelling. Retrieved September 5, 2018, from https://www.infopankki.fi/en/living-in-finland/housing/rental-dwelling
3. Central Statistical Bureau of Latvia. Households' incomes. (CSB. (2015a). Mājsaimniecību rīcībā esošie ienākumi.) Retrieved September 1, 2018, from http://data.csb.gov.lv/pxweb/lv/Sociala/Sociala__ikgad__ienemumi/II0040_euro.px/?rxid=ce8aac91-f2b0-4f13-a25d-29f57b1468fb
4. Central Statistical Bureau of Latvia. Poverty Risk Index, based on the status of the ownership of the built-up area, gender and age of the population (%) (CSB. (2015b). Nabadzības riska indekss pēc apdzīvotās platības īpašumtiesību statusa, iedzīvotāju dzimuma un vecuma (%).) Retrieved September 1, 2018, from http://data.csb.gov.lv/pxweb/lv/Sociala/Sociala__ikgad__monetara_nab/NI0060.px/table/tableViewLayout2/?rxid=cdcb978c-22b0-416a-aacc-aa650d3e2ce0
5. Cuerpo, C., Kalantaryan, S., & Pontuch, P. (2014). Rental Market Regulation in the European Union. Brussels. Retrieved from http://ec.europa.eu/economy_finance/publications/economic_paper/2014/pdf/ecp515_en.pdf