Penggayaan APA

SIANIPAR, Maria Olivia Christina. (2013). Impromptu speaking by lectures of english and indonesia . Medan: Universitas HKBP Nommensen.

Chicago Style

SIANIPAR, Maria Olivia Christina. Impromptu speaking by lectures of english and indonesia. Medan: Universitas HKBP Nommensen, 2013. Artikel.

MLA Style

SIANIPAR, Maria Olivia Christina. Impromptu speaking by lectures of english and indonesia. Medan: Universitas HKBP Nommensen, 2013. Artikel.

Turabian Style

SIANIPAR, Maria Olivia Christina. Impromptu speaking by lectures of english and indonesia. Medan: Universitas HKBP Nommensen, 2013. Artikel.