Borrington, K., & Stimpson, P. (2018). Cambridge IGCSE & O Level Business Studies Fifth Edition (5th.). Hodder Education.
Chicago-viite (17. p.)Borrington, Karen, ja Peter Stimpson. Cambridge IGCSE & O Level Business Studies Fifth Edition. 5th. UK: Hodder Education, 2018.
MLA-viite (9. p.)Borrington, Karen, ja Peter Stimpson. Cambridge IGCSE & O Level Business Studies Fifth Edition. 5th. Hodder Education, 2018.
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