Gaya APA

Indriyani, A., Holmboe, J. (2019). Khulafaur rasyidin (Jil.4). Bandung: Cordoba Internasional Indonesia.

Gaya MLA

Indriyani, Ary., Holmboe, James. "Khulafaur rasyidin". Jil.4 Bandung: Cordoba Internasional Indonesia, 2019. Text.