Vadhana Jayathavaj และ Adisak Pongpullponsak. (2017) Forecasting the number of deaths from cerebrovascular diseases in Thailand using grey systems theory. <i>Rangsit Journal of Arts and Sciences</i>, <i>7</i>(2), 131-140.Vadhana Jayathavaj และ Adisak Pongpullponsak. "Forecasting the number of deaths from cerebrovascular diseases in Thailand using grey systems theory". Rangsit Journal of Arts and Sciences 7 (2017):131-140.Vadhana Jayathavaj และ Adisak Pongpullponsak. Forecasting the number of deaths from cerebrovascular diseases in Thailand using grey systems theory. Rangsit University:ม.ป.ท. 2017.