Suguna Angamuthu, S. Kaviya, S. Suvitha and N. Saranya 2017. Lifetime enhancement using apkf algorithm for large scale wsn . International journal of intellectual advancements and research in engineering computations. 5, 2 (Jul. 2017), 1516–1519. DOI:https://doi.org/10.61096/ijiarec.v5.iss2.2017.1516-1519.