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International English Language Testing System (IELTS / ˈ aɪ. ɛ l t s /) [6] is an international standardized test of English language proficiency for non-native English language speakers. It is jointly managed by the British Council, IDP and Cambridge English, [6] and was established in 1989. IELTS is one of the major English-language tests ...
ISO 9 is an international standard establishing a system for the transliteration into Latin characters of Cyrillic characters constituting the alphabets of many Slavic and non-Slavic languages.