Development of standardized English language test in USSRKokkota, ValmarLanguage testing newsletter1983 / p. 15-16

Investigation of different kinds of cloze testsKokkota, ValmarLanguage testing newsletter1983 / p. 16-17

Letter-deletion procedure: a flexible way of reducing text redundancyKokkota, ValmarLanguage testing newsletter1988 / p. 115-119 https://www.ester.ee/record=b3041499*est