Kristalina, P., Wirawan, W. and Hendrantoro, G. (2013) “Improve the Robustness of Range-Free Localization Methods on Wireless Sensor Networks using Recursive Position Estimation Algorithm”, Journal of ICT Research and Applications, 5(3), pp. 203-222. doi: 10.5614/itbj.ict.2011.5.3.4.