Gaya APA
Low, M, W, &, E. (2021).
Cambridge Primary Mathematics Workbook Book 4 Second Edition (Cetakan kedua).
England:
Cambridge University Press.
Gaya MLA
Low, Mary, Wood, &, Emma.
"Cambridge Primary Mathematics Workbook Book 4 Second Edition".
Cetakan kedua
England:
Cambridge University Press,
2021.
.