Gaya APA

Dilley, F, B, &, L. (2021). Cambridge Primary Science Learner's Book 4 Second Edition (Cetakan Kedua). England: Cambridge University Press.

Gaya MLA

Dilley, Fiona, Baxter, &, Liz. "Cambridge Primary Science Learner's Book 4 Second Edition". Cetakan Kedua England: Cambridge University Press, 2021. .