Mur-Dueñas, Pilar. „Modal hedging verbs in English as a Lingua Franca (ELF) Business Management research articles“. Kalbotyra 69 (sausio 27, 2017): 153–178. žiūrėta rugpjūčio 28, 2026. https://journals.vu.lt/kalbotyra/article/view/10371.