A.P, D. G. ., Zainal, R. F. ., & Hidayat, M. M. . (2017). Forecasting for Book Classified on A Library by Using Single Exponential Smoothing (case Study : Library of Bhayangkara Surabaya University). JEECS (Journal of Electrical Engineering and Computer Sciences), 2(2), 271–280. https://doi.org/10.54732/jeecs.v2i2.152