Pratama, A. P., and M. Angelita. “Kontrol Penggunaan Air Bersih Perumda Tirta Manuntung Balikpapan Dengan Multivariat Exponentially Weighted Moving Avarage”. SPECTA Journal of Technology, vol. 7, no. 3, Dec. 2023, pp. 642-9, https://journal.itk.ac.id/index.php/sjt/article/view/1032.