Gaya APA
Lougheed, Lin. (2015).
Direct to Toefl iBT : Students Book .
Oxford:
Macmillan.
Gaya Chicago
Lougheed, Lin.
Direct to Toefl iBT : Students Book.
Oxford:
Macmillan,
2015.
Teks.
Gaya MLA
Lougheed, Lin.
Direct to Toefl iBT : Students Book.
Oxford:
Macmillan,
2015.
Teks.
Gaya Turabian
Lougheed, Lin.
Direct to Toefl iBT : Students Book.
Oxford:
Macmillan,
2015.
Teks.