Gaya APA

Safriani, A., Safriyani, R. (2014). Intructional Material Development / Afida Safriani dan Rizka Safriyani (cet. 1). Surabaya: UIN Sunan Ampel Pres.

Gaya MLA

Safriani, Afida., Safriyani, Rizka. "Intructional Material Development / Afida Safriani dan Rizka Safriyani". cet. 1 Surabaya: UIN Sunan Ampel Pres, 2014. Buku.