1. Бэн А. Стилистика и теория устной и письменной речи. Пер. с англ. А.Е. Грузинского. – М.: URSS: ЛИБРОКОМ, 2011. –309 с.

2. Biber Douglas. Variation across Speech and Writing. – New York: Cambridge University Press, 1992. – 382 p.

3. Головин Б.Н. Основы культуры речи. – М.: Высшая школа, 1980. – 335 с

4. Otazhonova, D. B. (2016). The Importance Of Etymological Dictionaries In Identifying The Norms Of Written Speech (On The Basis Of “The Hound Of The Baskervilles” By Arthur Conan Doyle And Its Translations In Russian And Uzbek). Theoretical & Applied Science, (12), 88-93.

5. Otajonova D. (2020) Sociolinguistic Factors in EFL Classes. International Engineering Journal for Research and Development. 5(3), 51-57.

6. Otojonova, N. B., & Otojonova, D. B. (2020). The Role of Differential Equations in Physical Exercise. Pedagogy & Psychology. Theory and practice, 4(30), 26-30.

7. Khoshimova D., Otajonova D. & Khaldarchayeva G. (2020) Modern technologies in teaching foreign languages. Academic Research in Educational Sciences. 1(3), 504-508

8. Ruzmetova, M., Otajonova, D., & Babadjanova, N. (2021). CONSIDERATIONS ON UNDERSTANDING THE MEANING OF A WORD. ACADEMIC RESEARCH IN EDUCATIONAL SCIENCES, 2(2), 1238-1242.

9. Ruzmatova, M. A. (2020). IMPROVING SPEAKING SKILLS IN FOREIGN LANGUAGE AT SECONDARY SCHOOL EDUCATIONAL SYSTEM. Science and Education, 1(5), 47-51