Waluyo, A. M. ., E. Prasetyo, and A. . Arizal. “Clasification System of Library Book Based on Similarity of The Book Title Using K-Means Method (case Study Library of Bhayangkara Surabaya)”. JEECS (Journal of Electrical Engineering and Computer Sciences), vol. 3, no. 1, June 2018, pp. 395-04, doi:10.54732/jeecs.v3i1.146.