Gaya APA
Islamic english. (2006).
Bandung:
Remaja Rosdakarya.
Gaya Chicago
Islamic english.
Cet.2.
Bandung:
Remaja Rosdakarya,
2006.
.
Gaya MLA
Islamic english.
Cet.2.
Bandung:
Remaja Rosdakarya,
2006.
.
Gaya Turabian
Islamic english.
Bandung:
Remaja Rosdakarya,
2006.
.