наружный зародышевый листок . Koolisõnastikud 2005–2010. Estonian Language Institute, Sõnaveeb 2026. https://sonaveeb.ee/search/unif//kool_KV/%D0%BD%D0%B0%D1%80%D1%83%D0%B6%D0%BD%D1%8B%D0%B9%20%D0%B7%D0%B0%D1%80%D0%BE%D0%B4%D1%8B%D1%88%D0%B5%D0%B2%D1%8B%D0%B9%20%D0%BB%D0%B8%D1%81%D1%82%D0%BE%D0%BA/1/rus (21.06.2026)
наружный зародышевый листок . Loomakasvatuse terminibaas. Estonian Language Institute, Sõnaveeb 2026. https://sonaveeb.ee/search/unif//lkt/%D0%BD%D0%B0%D1%80%D1%83%D0%B6%D0%BD%D1%8B%D0%B9%20%D0%B7%D0%B0%D1%80%D0%BE%D0%B4%D1%8B%D1%88%D0%B5%D0%B2%D1%8B%D0%B9%20%D0%BB%D0%B8%D1%81%D1%82%D0%BE%D0%BA/1/rus (21.06.2026)
