Suntaree Tungsriwong และ Tanyaluk Vichitsarawong. (2010) The usefulness of earnings information and investor classes during the period of balance sheet approach. Chulalongkorn University:ม.ป.ท.Suntaree Tungsriwong และ Tanyaluk Vichitsarawong. 2010. The usefulness of earnings information and investor classes during the period of balance sheet approach. ม.ป.ท.:Chulalongkorn University;Suntaree Tungsriwong และ Tanyaluk Vichitsarawong. The usefulness of earnings information and investor classes during the period of balance sheet approach. ม.ป.ท.:Chulalongkorn University, 2010. Print.