H. A. A. AL-Asadi, A. Alhassani, N. A. A. Hambali, M. A. AlSibahee, S. A. Alwazzan, and A. M. Jasim "Priority Incorporated Zone Based Distributed Clustering Algorithm for Heterogeneous Wireless Sensor Network", Advances in Science, Technology and Engineering Systems Journal, vol. 4, no. 5, pp. 306–313, 2019, doi: 10.25046/aj040539.