Development of standardized English language test in USSR
Kokkota, Valmar
Language testing newsletter
1983
/
p. 15-16
Investigation of different kinds of cloze tests
Kokkota, Valmar
Language testing newsletter
1983
/
p. 16-17
Letter-deletion procedure: a flexible way of reducing text redundancy
Kokkota, Valmar
Language testing newsletter
1988
/
p. 115-119
https://www.ester.ee/record=b3041499*est
https://journals.sagepub.com/doi/abs/10.1177/026553228800500108