Gaya APA

Ubaidillah, A., Rivian, F. (2021). Introvert and extrovert is fine! (Cetakan pertama). : C-Klilk Media.

Gaya MLA

Ubaidillah, Amir., Rivian, Farida. "Introvert and extrovert is fine!". Cetakan pertama : C-Klilk Media, 2021. Text.