Thongkam, J., V. Sukmak, and W. Mayusiri. “A comparison of regression analysis for predicting the daily number of anxiety-related outpatient visits with different time series data mining”. Engineering and Applied Science Research, vol. 42, no. 3, Sept. 2015, pp. 243-9, https://ph01.tci-thaijo.org/index.php/easr/article/view/38302.