охрана окружающей среды . Huviharidussõnastik. Estonian Language Institute, Sõnaveeb 2026.
https://sonaveeb.ee/search/unif//has/%D0%BE%D1%85%D1%80%D0%B0%D0%BD%D0%B0%20%D0%BE%D0%BA%D1%80%D1%83%D0%B6%D0%B0%D1%8E%D1%89%D0%B5%D0%B9%20%D1%81%D1%80%D0%B5%D0%B4%D1%8B/1/rus (13.11.2026)

охрана окружающей среды . Eesti-vene-eesti õigusterminoloogiabaas. Estonian Language Institute, Sõnaveeb 2026.
https://sonaveeb.ee/search/unif//%C3%B5tb/%D0%BE%D1%85%D1%80%D0%B0%D0%BD%D0%B0%20%D0%BE%D0%BA%D1%80%D1%83%D0%B6%D0%B0%D1%8E%D1%89%D0%B5%D0%B9%20%D1%81%D1%80%D0%B5%D0%B4%D1%8B/1/rus (13.11.2026)

охрана окружающей среды . Limnoloogia sõnastik. Estonian Language Institute, Sõnaveeb 2026.
https://sonaveeb.ee/search/unif//lim/%D0%BE%D1%85%D1%80%D0%B0%D0%BD%D0%B0%20%D0%BE%D0%BA%D1%80%D1%83%D0%B6%D0%B0%D1%8E%D1%89%D0%B5%D0%B9%20%D1%81%D1%80%D0%B5%D0%B4%D1%8B/1/rus (13.11.2026)

охрана окружающей среды . Metalliaabits. Estonian Language Institute, Sõnaveeb 2026.
https://sonaveeb.ee/search/unif//met/%D0%BE%D1%85%D1%80%D0%B0%D0%BD%D0%B0%20%D0%BE%D0%BA%D1%80%D1%83%D0%B6%D0%B0%D1%8E%D1%89%D0%B5%D0%B9%20%D1%81%D1%80%D0%B5%D0%B4%D1%8B/1/rus (13.11.2026)

охрана окружающей среды . Koolisõnastikud 2005–2010. Estonian Language Institute, Sõnaveeb 2026.
https://sonaveeb.ee/search/unif//kool_KV/%D0%BE%D1%85%D1%80%D0%B0%D0%BD%D0%B0%20%D0%BE%D0%BA%D1%80%D1%83%D0%B6%D0%B0%D1%8E%D1%89%D0%B5%D0%B9%20%D1%81%D1%80%D0%B5%D0%B4%D1%8B/1/rus (13.11.2026)

охрана окружающей среды . Koolisõnastikud 2005–2010. Estonian Language Institute, Sõnaveeb 2026.
https://sonaveeb.ee/search/unif//kool_KV/%D0%BE%D1%85%D1%80%D0%B0%D0%BD%D0%B0%20%D0%BE%D0%BA%D1%80%D1%83%D0%B6%D0%B0%D1%8E%D1%89%D0%B5%D0%B9%20%D1%81%D1%80%D0%B5%D0%B4%D1%8B/1/rus (13.11.2026)