Phongvarin Vichitvejpaisal และ Pizzanu Kanongchaiyos. (2005) An enhancement of billboard for highly detailed 3D object representation. Chulalongkorn University:ม.ป.ท.Phongvarin Vichitvejpaisal และ Pizzanu Kanongchaiyos. 2005. An enhancement of billboard for highly detailed 3D object representation. ม.ป.ท.:Chulalongkorn University;Phongvarin Vichitvejpaisal และ Pizzanu Kanongchaiyos. An enhancement of billboard for highly detailed 3D object representation. ม.ป.ท.:Chulalongkorn University, 2005. Print.