1. 1.  “Android Based Mobile Drive System” by Dr.Sheilfali Gupta, Anand Bansal, Deeksha, HarshdeepSingh, Janender Bansal “International Journal of Electronics & Computer Science Engineering”Volume 3. 
   2.  “Touch Screen Based Wheelchair System” byVasundhara G.Posugade, Komal K.Shedge,ChaitaliS.Tikhe “International Journal Of Engineering Research and Applications ” Volume 2, Issue 2, Mar-Apr-2012.
   3. “Voice operated wheelchair” by Jayesh K.Kokate,A.M.Agarkar”international Journal of research in engineering and technology” Volume3,Issue 2,Feb2014.
   4. Basics of developing android application on http://developer.android.com/training/basics
   5. Android Programmers Guide by Jerome DiMarzio.