Pieniążek, Marek. 2017. „Comparison of National Language Teaching Systems. Introduction”. Annales Universitatis Paedagogicae Cracoviensis. Studia Ad Didacticam Litterarum Polonarum Et Linguae Polonae Pertinentia 8 (227). https://didactica.uken.krakow.pl/article/view/4484.