Gaya APA
Sihombing, Binsar. (2007).
English Grammar Comprehension .
Jakarta:
Grasindo.
Gaya Chicago
Sihombing, Binsar.
English Grammar Comprehension.
Jakarta:
Grasindo,
2007.
Text.
Gaya MLA
Sihombing, Binsar.
English Grammar Comprehension.
Jakarta:
Grasindo,
2007.
Text.
Gaya Turabian
Sihombing, Binsar.
English Grammar Comprehension.
Jakarta:
Grasindo,
2007.
Print.