Preeds Parkpain และ Pichit Pongsakul; Suresit Attajarusit; Wisit Cholitkul. (1993) Toxic Mercury Compounds in the Recent environmental System. <i>Thai Agricultural Research Journal</i>, <i>11</i>(2), 101-104.Preeds Parkpain และ Pichit Pongsakul; Suresit Attajarusit; Wisit Cholitkul. "Toxic Mercury Compounds in the Recent environmental System". Thai Agricultural Research Journal 11 (1993):101-104.Preeds Parkpain และ Pichit Pongsakul; Suresit Attajarusit; Wisit Cholitkul. Toxic Mercury Compounds in the Recent environmental System. Department of Agriculture:ม.ป.ท. 1993.