APA Style

Suwartono, ., Agustina, D. (2019). Ideas and Research in Language (Cet. Pertama). Purwokerto: UM Purwokerto Press.

MLA Style

Suwartono, ., Agustina, Dwi. "Ideas and Research in Language". Cet. Pertama Purwokerto: UM Purwokerto Press, 2019. Text.