Gaya APA
Astuti, E, M.
(2015).
Mandiri Practise Your English Competence 3
.
jakarta:
PT. Erlangga.
Gaya MLA
Astuti, Eka, Mulya.
"Mandiri Practise Your English Competence 3".
jakarta:
PT. Erlangga,
2015.
Buku Paket.