Gaya APA
Understanding and Using English Grammar : Third Edition With Answer Key. (2002).
USA:
Pearson Education, Inc.
Gaya Chicago
Understanding and Using English Grammar : Third Edition With Answer Key.
ed.3.
USA:
Pearson Education, Inc,
2002.
.
Gaya MLA
Understanding and Using English Grammar : Third Edition With Answer Key.
ed.3.
USA:
Pearson Education, Inc,
2002.
.
Gaya Turabian
Understanding and Using English Grammar : Third Edition With Answer Key.
USA:
Pearson Education, Inc,
2002.
.