AMANTAY, B. TEACHING MAIN CONCEPTS OF OBJECT-ORIENTED PROGRAMMING USING GREENFOOT INTEGRATED DEVELOPMENT ENVIRONMENT. Scientific Journal of Pedagogy and Economics, [S. l.], n. 2, p. 44–64, 2022. DOI: 10.32014/2022.2518-1467.271. Disponível em: https://journals.nauka-nanrk.kz/bulletin-science/article/view/3247. Acesso em: 5 дек. 2025.