Gaya APA

Arini, Y, D. (2008). Let's Study MODALS (Ayo Belajar Modal) (Cet. 1). : 979-534-479-7.

Gaya MLA

Arini, Yuniarti, D.. "Let's Study MODALS (Ayo Belajar Modal)". Cet. 1 : 979-534-479-7, 2008. Text.