English File 3rd : Pre-Intermediate: Student's Book 2019 Edition: OXFORD: 9780194598576: Amazon.com: Books
English File 4th Edition Pre-Intermediate. Multipack A: 9780194037303: Amazon.com: Books
English File: Upper-Intermediate: Workbook with Key (English File): 9780194039888: Amazon.com: Books
Solutions: Upper-Intermediate: Student's Book and Online Practice Pack (Solutions): Varios: 9780194506601: Amazon.com: Books
SOLUTIONS UPPER-INTERMEDIATE: STUDENT'S BOOK PACK: Tim Falla: 9780194551953: Amazon.com: Books
Amazon.com: New Headway: Upper-Intermediate: Student's Book A: The world's most trusted English course (New Headway): 9780194713290: Soars, John, Soars, Liz: Books
Natural English Upper-Intermediate. Student's Book (with Listening Booklet): Gairns, Ruth, Redman, Stuart: 9780194373319: Amazon.com: Books
Navigate: B2 Upper-Intermediate: Workbook with CD (without key) (Navigate): Krantz, Caroline: 9780194566780: Amazon.com: Books
Amazon.com: Solutions: Upper-Intermediate: Student's Book (Solutions): 9780194552899: Varios Autores: Books