building up . Materjalitehnika terminibaas. Estonian Language Institute, Sõnaveeb 2026. https://127.0.0.1:5577/search/unif//mtr/building%20up/1/eng (08.10.2026)
building up . Materjalitehnika terminibaas. Estonian Language Institute, Sõnaveeb 2026. https://127.0.0.1:5577/search/unif//mtr/building%20up/1/eng (08.10.2026)