Gaya APA

Riyanto, S., Noegraheni, N. (2025). Fluent in Speaking English Just in 10 Days (Ed. 1, Cet. 1). Yogyakarta: CV Andi Ofset.

Gaya MLA

Riyanto, Slamet., Noegraheni, Nina. "Fluent in Speaking English Just in 10 Days". Ed. 1, Cet. 1 Yogyakarta: CV Andi Ofset, 2025. Text.