Parichart Sukanjanapong และ Somchai Suphatarakul. (2007) Stock trading strategy based on historical financial ratios. Faculty of Commerce and Accountancy, Thammasat University,:ม.ป.ท.Parichart Sukanjanapong และ Somchai Suphatarakul. 2007. Stock trading strategy based on historical financial ratios. ม.ป.ท.:Faculty of Commerce and Accountancy, Thammasat University,;Parichart Sukanjanapong และ Somchai Suphatarakul. Stock trading strategy based on historical financial ratios. ม.ป.ท.:Faculty of Commerce and Accountancy, Thammasat University, 2007. Print.