Gaya APA
English for manpower. (2002).
Jakarta:
Kesaint Blanc.
Gaya Chicago
English for manpower.
.
Jakarta:
Kesaint Blanc,
2002.
Buku.
Gaya MLA
English for manpower.
.
Jakarta:
Kesaint Blanc,
2002.
Buku.
Gaya Turabian
English for manpower.
Jakarta:
Kesaint Blanc,
2002.
Buku.