Gaya APA
earl, B., wilford, D. (2021).
Cambridge IGCSE chemistry Third edition workbook (Ed 3).
London, Inggris (Hodder Educat:
Hodder Education.
Gaya MLA
earl, Bryan., wilford, Doug.
"Cambridge IGCSE chemistry Third edition workbook".
Ed 3
London, Inggris (Hodder Educat:
Hodder Education,
2021.
Text.