Gaya APA

Elsevier, I. (2018). The American Journal of Orthodontics and Dentofacial Orthopedics Volume 157 No.2 Pebruari 2020 . New York. USA: Elsevier Inc.

Gaya MLA

Elsevier, Internasional.. "The American Journal of Orthodontics and Dentofacial Orthopedics Volume 157 No.2 Pebruari 2020". New York. USA: Elsevier Inc, 2018. Jurnal Internasional.