Gaya APA
Puchta, H., Stranks, J.
(2013).
English in Mind Second Edition Workbook 1
(
1)
.
Singapore:
Cambridge.
Gaya MLA
Puchta, Herbert., Stranks, Jeff.
"English in Mind Second Edition Workbook 1".
1
Singapore:
Cambridge,
2013.
Buku Pelajaran.