Parnsiri Ngammaneewat และ Suchitra Sueeprasan. (2009) Effects of lightness and chroma on colour harmony of colour pairs. Chulalongkorn University:ม.ป.ท.Parnsiri Ngammaneewat และ Suchitra Sueeprasan. 2009. Effects of lightness and chroma on colour harmony of colour pairs. ม.ป.ท.:Chulalongkorn University;Parnsiri Ngammaneewat และ Suchitra Sueeprasan. Effects of lightness and chroma on colour harmony of colour pairs. ม.ป.ท.:Chulalongkorn University, 2009. Print.