Gaya APA

Sunardi, ., Maharani, I. (). Let's study prepositions : Mari belajar preposisi (Cet.7). Yogyakarta: Citra Aji Parama.

Gaya MLA

Sunardi, ., Maharani, Ida. "Let's study prepositions : Mari belajar preposisi". Cet.7 Yogyakarta: Citra Aji Parama, . Text.