Elsevier, I.(2011).The American Journal of Orthodontics and Dentofacial Orthopedics Volume 139 No. 6 Juni 2011 (Volume 139 No. 6 Juni 2011).New York. USA:Elsevier, Inc.
Gaya MLA
Elsevier, I..The American Journal of Orthodontics and Dentofacial Orthopedics Volume 139 No. 6 Juni 2011.Volume 139 No. 6 Juni 2011New York. USA:Elsevier, Inc,2011.Jurnal Internasional.