Gaya APA
Riyanto, S., Triyantiningsih, W, L.
(2010).
99,99% Sukses Toeic
(
cet 1)
.
:
Pustaka Widyatama.
Gaya MLA
Riyanto, Slamet., Triyantiningsih, With, Liliek.
"99,99% Sukses Toeic".
cet 1
:
Pustaka Widyatama,
2010.
Art Original.