Burkšaitienė, Nijolė. “Portfolio Method for Learning ESP in the Context of Paradigm Change”. Acta Paedagogica Vilnensia 17 (December 17, 2006): 168–178. Accessed October 26, 2025. https://test.zurnalai.vu.lt/acta-paedagogica-vilnensia/article/view/9696.