Phetcharat, S., R. Buntan, and R. . Ruekrai. “Long Term Trend Analysis of Domestic Car Sales Volume Using Time Series; 2011-2021 Case Study”. Srinakharinwirot University Engineering Journal, vol. 18, no. 1, Feb. 2023, pp. 31-41, https://ph02.tci-thaijo.org/index.php/sej/article/view/247508.