1. Kalaimagal M. S. and Sivaramakrishnan D. R., in IJERT (2012)
2. Navigation of mobile robot using Low-cost GPS
3. Mautz R., Geod. Ir Kartogr. 35, 18 (2009)
4. Siciliano B., Khatib O., Springer Handbook of Robotics (2016)
5. Yuen C. W., Balasubramaniam N., and Din N. M., in 2009 IEEE 9th Malays. Int. Conf. Commun. MICC, 857–862 (2009)