Gaya APA
Wolff, J, U. et al (1987).
Beginning Indonesia Trough self-Instruction: Book 3 Lessons 14-25 .
Jakarta:
Gramedia Pustaka Utama.
Gaya MLA
Wolff, John, U. et al.
"Beginning Indonesia Trough self-Instruction: Book 3 Lessons 14-25".
Jakarta:
Gramedia Pustaka Utama,
1987.
Text.