счётная линейка . EKI Combined Dictionary 2026. Estonian Language Institute, Sõnaveeb 2026. https://sonaveeb.ee/search/unif/dlall/eki/%D1%81%D1%87%D1%91%D1%82%D0%BD%D0%B0%D1%8F%20%D0%BB%D0%B8%D0%BD%D0%B5%D0%B9%D0%BA%D0%B0/1/rus (29.10.2026)
Translations
счётная линейка . Haridussõnastik. Estonian Language Institute, Sõnaveeb 2026. https://sonaveeb.ee/search/unif//har/%D1%81%D1%87%D1%91%D1%82%D0%BD%D0%B0%D1%8F%20%D0%BB%D0%B8%D0%BD%D0%B5%D0%B9%D0%BA%D0%B0/1/rus (29.10.2026)
счётная линейка . Matemaatika terminibaas. Estonian Language Institute, Sõnaveeb 2026. https://sonaveeb.ee/search/unif//mat/%D1%81%D1%87%D1%91%D1%82%D0%BD%D0%B0%D1%8F%20%D0%BB%D0%B8%D0%BD%D0%B5%D0%B9%D0%BA%D0%B0/1/rus (29.10.2026)