Bulatetska, L., and V. Bulatetsky. “Features of Studying the Language of SQL Queries in the Profile Course of Informatics of Institutions of General Secondary Education”. COMPUTER-INTEGRATED TECHNOLOGIES: EDUCATION, SCIENCE, PRODUCTION, no. 39 (May 17, 2020): 5-10. Accessed April 16, 2025. https://cit.lntu.edu.ua/index.php/cit/article/view/114.