English for science and technologyRistna, Valda1987 https://www.ester.ee/record=b1204139*est

English for students of engineeringKokkota, Valmar; Karusoo, Aino; Kukk, Helja-Amanda; Lassmann, Lembit; Loo, Koidu; Ristna, Valda; Tillemann, Helmi1983 https://www.ester.ee/record=b1213814*est

Learn to read scientific English1983 https://www.ester.ee/record=b1271368*est

Reading English newspapers1990 https://www.ester.ee/record=b1246706*est

Scientific readings in English1988 https://www.ester.ee/record=b1241953*est

Texte für Chemiker1972 https://www.ester.ee/record=b1343558*est

Texts for food technology students1982 https://www.ester.ee/record=b1260447*est

К вопросу о проектирование действия в английском языкеRistna, ValdaUurimusi germaani keelte sõnavara ja grammatika alalt1980 / с. 93-99 https://www.ester.ee/record=b1286446*est https://dspace.ut.ee/handle/10062/30028

К сопоставительному изучению текста (на материале английского и эстонского языков)Ristna, ValdaUurimusi kõrvutava ja rakenduslingvistika alalt = Исследования по сопоставительному и прикладному языкознанию1983 / с. 107-112 https://www.ester.ee/record=b1271446*est https://dspace.ut.ee/handle/10062/25148