Muna S, Kuntoro K. APPLICATION OF THE HOLT-WINTERS EXPONENTIAL SMOOTHING METHOD ON THE AIR POLLUTION STANDARD INDEX IN SURABAYA. JBK [Internet]. 2021 Jun. 25 [cited 2024 Nov. 23];10(1):53-60. Available from: https://e-journal.unair.ac.id/JBK/article/view/18280