“SCIENTIFIC AND METHODOLOGICAL FOUNDATIONS FOR ENSURING THE SPIRALING DEVELOPMENT OF GRAMMAR AND VOCABULARY MATERIALS IN ENGLISH LANGUAGE TEXTBOOKS” (2025) Modern American Journal of Linguistics, Education, and Pedagogy, 1(8), pp. 131–143. Available at: https://usajournals.org/index.php/6/article/view/1405 (Accessed: 28 September 2026).