JAYATHAVAJ, V. Forecasting Thai Traditional Drugs Values Using Grey System Theory with Fractional Order Buffer Operator and Periodic Correction Models. Journal of Applied Statistics and Information Technology, [S. l.], v. 2, n. 2, p. 25–35, 2018. Disponível em: https://ph02.tci-thaijo.org/index.php/asit-journal/article/view/165720. Acesso em: 13 may. 2024.