• Standardization of foreign language tests series ITAEinväli, E.; Kokkota, Valmar; Kukk, Helja-Amanda; Toomsalu, Marju; Tšetõrkina, Ene; Volgina, Olga; Võrk, Evi-Mai2nd regional seminar Testing in foreign language teaching : Tallinn, February 25-26, 1986 : summaries1986 / p. 32-35 https://www.ester.ee/record=b1217950*est