1. Multiple authors (2005). Encyclopedia of Gazeta Wyborcza, T. 20: Wielk–żyzno, 800 pp. Warszawa, Poland: Agora. [In Polish.]
2. DereńE. & PolańskiE. (2008). Comprehensive Dictionary of the Polish Language, 993 pp. Kraków, Poland: Krakowskie Wydawnictwo Naukowe. [In Polish.]
3. DoroszewskiW. (1997). Polish Language Dictionary, 1496 pp. Warszawa, Poland: PWN. [In Polish.]