Gaya APA
Manurung, Heldin. (2007).
Simplified english grammar / Heldin Manurung .
Jakarta:
Kesaint Blanc.
Gaya Chicago
Manurung, Heldin.
Simplified english grammar / Heldin Manurung.
Jakarta:
Kesaint Blanc,
2007.
Text.
Gaya MLA
Manurung, Heldin.
Simplified english grammar / Heldin Manurung.
Jakarta:
Kesaint Blanc,
2007.
Text.
Gaya Turabian
Manurung, Heldin.
Simplified english grammar / Heldin Manurung.
Jakarta:
Kesaint Blanc,
2007.
Print.