APA (7th ed.) Citation

Yuyun Yuningsih, S. (2008). Happy With English. PT Era Adicitra Intermedia.

Chicago Style (17th ed.) Citation

Yuyun Yuningsih, S.Pd. Happy With English. PT Era Adicitra Intermedia, 2008.

MLA (8th ed.) Citation

Yuyun Yuningsih, S.Pd. Happy With English. PT Era Adicitra Intermedia, 2008.

Warning: These citations may not always be 100% accurate.