Gaya APA

Riyanto, S. (2008). The first things first english vocabulary 1000 selected nouns used in speaking english (Cet. 1). Yogayakarta: Pustaka Pelajar.

Gaya MLA

Riyanto, Slamet. "The first things first english vocabulary 1000 selected nouns used in speaking english". Cet. 1 Yogayakarta: Pustaka Pelajar, 2008. Art Original.