SAKALAUSKĖ, Agnė; LEONAVIČIŪTĖ, Virginija. Strategic analysis of Duolingo language learning platform. Mokslas – Lietuvos ateitis / Science – Future of Lithuania, [S. l.], v. 14, 2022. DOI: 10.3846/mla.2022.17731. Disponível em: https://journals.vilniustech.lt/index.php/MLA/article/view/17731. Acesso em: 16 may. 2025.