Gaya APA
Hafsah, M, J., Kardjio, . (1987).
The Most Contemporary Of English Grammar And Correspondence .
Jakarta:
Pijar Fandra Gemilang.
Gaya MLA
Hafsah, Mohammad, Jafar., Kardjio, .
"The Most Contemporary Of English Grammar And Correspondence".
Jakarta:
Pijar Fandra Gemilang,
1987.
Text.