4 1 20 Bamford, Colin Primary Author Grant, Susan Primary Author mixed material 9780521126656 New York Cambridge University Press 2010 cover_cambridge-international-as-and-a-level-economics-second-edition-20241009102926.jpeg Grant, Susan Primary Author mixed material 9781108440400 Malaysia Cambridge University Press 2018 cover_cambridge-igcse-and-0-level-workbook-economics-20251028133546.jpg Bamford, Colin Primary Author Grant, Susan Primary Author mixed material 9781107679511 Dubai Cambridge University Press 2015 cover_cambridge-international-as-and-a-level-economics-coursebook-third-ed-20241009103151.jpeg Grant, Susan Primary Author mixed material 9781316638095 The United Kingdom Cambridge University Press 2017 cover_cambridge-international-as-and-a-level-economics-revision-guide-secon-20241009110532.jpg