Internasional.Elsevier, (2019).The American Journal of Orthodontics and Dentofacial Orthopedics Volume 155 No.5 May 2019 (Volume 155 No.5 May 2019).New York:Elsevier Mosby..
Gaya MLA
Internasional.Elsevier, .The American Journal of Orthodontics and Dentofacial Orthopedics Volume 155 No.5 May 2019.Volume 155 No.5 May 2019New York:Elsevier Mosby.,2019.Jurnal Internasional.