Gaya APA

Kusuma, R, C., Ishartadi, A. (2023). The Power Of Focus / Rifian Candra Kusuma (Cet. 2). Yogyakarta: Anak Hebat Indonesia.

Gaya MLA

Kusuma, Rifian, Candra., Ishartadi, Arif. "The Power Of Focus / Rifian Candra Kusuma". Cet. 2 Yogyakarta: Anak Hebat Indonesia, 2023. Text.