Gaya APA
Mann, R., Jones, H.
(2001).
Stepping forward Jilid 2
.
Surakarta:
SNP Pan Publishing.
Gaya MLA
Mann, Robyn., Jones, Heather.
"Stepping forward Jilid 2".
Surakarta:
SNP Pan Publishing,
2001.
Buku Penunjang.