APA (7e ed.) Bronvermelding

Borrington, K., & Stimpson, P. (2018). Cambridge IGCSE & O Level Business Studies Fifth Edition (5th.). Hodder Education.

Chicago (17e ed.) Bronvermelding

Borrington, Karen, en Peter Stimpson. Cambridge IGCSE & O Level Business Studies Fifth Edition. 5th. UK: Hodder Education, 2018.

MLA (9e ed.) Bronvermelding

Borrington, Karen, en Peter Stimpson. Cambridge IGCSE & O Level Business Studies Fifth Edition. 5th. Hodder Education, 2018.