MASCULL, Bill. Market Leader : Upper Intermediate : Business English Teacher's Resource Book : [B2-C1]. 3rd Edition. Harlow : PEARSON/ FT Publishing, 2011, dotlač 2014, dotlač 2017. 215 s. Always Learning. ISBN 978-1-4082-6803-2. [Počet ex. : 3, z toho voľných 1, prezenčne 0]