Gaya APA
Mantra, IB. (1997).
Pretesting .
Jakarta:
Al-Mawardi Prima.
Gaya Chicago
Mantra, IB.
Pretesting.
Jakarta:
Al-Mawardi Prima,
1997.
Buku Teks.
Gaya MLA
Mantra, IB.
Pretesting.
Jakarta:
Al-Mawardi Prima,
1997.
Buku Teks.
Gaya Turabian
Mantra, IB.
Pretesting.
Jakarta:
Al-Mawardi Prima,
1997.
Buku Teks.