surface tempering . EKI terminibaas Esterm. Estonian Language Institute, Sõnaveeb 2026. https://sonaveeb.ee/search/unif//esterm/surface%20tempering/1/eng (06.11.2026)
surface tempering . Materjalitehnika terminibaas. Estonian Language Institute, Sõnaveeb 2026. https://sonaveeb.ee/search/unif//mtr/surface%20tempering/1/eng (06.11.2026)