Headway academic skills
Philpot Sarah, Soars Liz, Soars John, Curnick LesleyKniha
Citace v seznamu literatury:
PHILPOT, Sarah a CURNICK, Lesley, SOARS, Liz a SOARS, John (ed.). Headway academic skills: listening, speaking, and study skills. Level 2, Teacher's guide. Oxford: Oxford University Press, 2011. ISBN 9780194741668.