Gaya APA
Drs. Slamet Riyanto, M.Pd. (2012).
Speaking english is easy .
Yogyakarta:
Penerbit Pustaka Widyatama.
Gaya Chicago
Drs. Slamet Riyanto, M.Pd.
Speaking english is easy.
Yogyakarta:
Penerbit Pustaka Widyatama,
2012.
Text.
Gaya MLA
Drs. Slamet Riyanto, M.Pd.
Speaking english is easy.
Yogyakarta:
Penerbit Pustaka Widyatama,
2012.
Text.
Gaya Turabian
Drs. Slamet Riyanto, M.Pd.
Speaking english is easy.
Yogyakarta:
Penerbit Pustaka Widyatama,
2012.
Print.