Gaya APA

Latief, M, A. (2011). Research methods on language learning : an introduction (Cet. 1). Malang: Universitas Negeri Malang Press.

Gaya MLA

Latief, Mohammad, Adnan. "Research methods on language learning : an introduction". Cet. 1 Malang: Universitas Negeri Malang Press, 2011. Text.