Gaya APA

Sudiran, . et al (2019). English Speaking For Informal Interaction (Cet.1). Malang: Universitas Muhammadiyah Malang.

Gaya MLA

Sudiran, . et al. "English Speaking For Informal Interaction". Cet.1 Malang: Universitas Muhammadiyah Malang, 2019. TEXT.