MERZLIKINA, O. Communication strategies in oral interaction in formal learning contexts: analysis of manuals. Porta Linguarum. An International Journal of Foreign Language Teaching and Learning, Granada, Spain, n. 37, p. 161–176, 2021. DOI: 10.30827/portalin.vi37.16727. Disponível em: https://revistaseug.ugr.es/index.php/portalin/article/view/16727. Acesso em: 14 feb. 2026.