Gaya APA
Riyanto, S. (2006).
2500 Key Word To Be Good At English With Useful Examples (Cet.2).
Yogyakarta:
Pustaka Pelajar.
Gaya MLA
Riyanto, Slamet.
"2500 Key Word To Be Good At English With Useful Examples".
Cet.2
Yogyakarta:
Pustaka Pelajar,
2006.
Text.