Suguna Angamuthu, S. Kaviya, S. Suvitha, and N. Saranya. “Lifetime Enhancement Using Apkf Algorithm for Large Scale Wsn”. International Journal of Intellectual Advancements and Research in Engineering Computations, vol. 5, no. 2, July 2017, pp. 1516-9, https://ijiarec.com/ijiarec/article/view/1526.