Gaya APA

Harahap, S, I, M, D, A. (2015). Psycholinguistics (an introduction) . Rantauparapat-Sumatera Utara: CV. Putra Maharatu.

Gaya MLA

Harahap, Suswanto, Ismadi, Megah,, Dahrul, Aman. "Psycholinguistics (an introduction)". Rantauparapat-Sumatera Utara: CV. Putra Maharatu, 2015. Text.