Gaya APA
Grey, P. (2020).
Cambridge IGCSE and O Level History Option B : the 20th Century Coursebook (2nd Ed).
Malaysia:
Cambrige University Press.
Gaya MLA
Grey, Paul.
"Cambridge IGCSE and O Level History Option B : the 20th Century Coursebook".
2nd Ed
Malaysia:
Cambrige University Press,
2020.
Text.