APA Citation

Drs.Slamet Riyanto. (2012). Speaking English is Easy. Yogyakarta: Pustaka Widyatama.

Chicago Style Citation

Drs.Slamet Riyanto. Speaking English Is Easy. Yogyakarta: Pustaka Widyatama, 2012.

MLA Citation

Drs.Slamet Riyanto. Speaking English Is Easy. Yogyakarta: Pustaka Widyatama, 2012.

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