http://en.wikipedia.org/wiki/Non-native_pronunciations_of_English
http://www.beatthegmat.com/mba/2010/10/21/10-study-tips-for-non-native-speakers
http://www.slideshare.net/tuanvic/native-or-non-native-speaker
http://www.slideshare.net/aidenyeh/who-speaks-english
http://www.slideshare.net/thenausner/evaluating-attitudes-towards-nonnative-speaker-accents
http://www.slideshare.net/arahimcal/communication-skills
http://www.slideshare.net/viswanadham/20090527-motivation-for-better-performance-in-workplaces-for-supporting-staff-nizams-college-hyderabad-38s