English file
Latham-Koenig Christina, Oxenden Clive, Chomacki Kate, Hudson Jane, Lowy Anna, Hird JonKniha
Citace v seznamu literatury:
LATHAM-KOENIG, Christina; OXENDEN, Clive; CHOMACKI, Kate; HUDSON, Jane; LOWY, Anna et al. English file: advanced plus. Fourth edition. Oxford: Oxford University Press, 2021. ISBN 978-0-19-406080-6. Dostupné také z: https://englishfileonline.com.