http://www.slideshare.net/AtikahAsrul/audio-audiovisual-presentasi
http://www.slideshare.net/AtikahAsrul/speech-pp-42951478
http://www.slideshare.net/AtikahAsrul/speech-presentation-42951438
http://www.slideshare.net/AtikahAsrul/paper-of-psycholinguistics
http://www.slideshare.net/AtikahAsrul/course-design-42951364