Gaya APA

Riyanto, S., Nina, . (2011). How to Write a Letter of Aplication in English :Pastikan anda bisa.... (Cet. 1). Yogyakarta: Pustaka Widyatama.

Gaya MLA

Riyanto, Slamet., Nina, . "How to Write a Letter of Aplication in English :Pastikan anda bisa....". Cet. 1 Yogyakarta: Pustaka Widyatama, 2011. Text.