Gaya APA

P, N, H, A, K, A, E, R. (2018). Best Score Toefl . Solo: Genta Smart Publisher.

Gaya MLA

P, Nurul, Hudha;, Alvina, K, Ayuningtyas;, Esthiwi, Retno. "Best Score Toefl". Solo: Genta Smart Publisher, 2018. Text.