Incoming Resources
- APA Publications, Singapore, 2011, ©2011
- APA Publications, Singapore, 2014
- APA Publications, Langenscheidt Pub., Singapore, Long Island City, NY, 2011
- APA Publications, distributed by Ingram Publisher Services, Singapore, LaVergne, TN:, 2011
- APA Publications, London, 2016
- APA Publications, Place of publication not identified, 2017