Chayanin Wangsai และ Pisanu Sangiampongsa. (2007) The Practice of corporate social responsibility and environmental protection in Thailand. Chulalongkorn University:ม.ป.ท.Chayanin Wangsai และ Pisanu Sangiampongsa. 2007. The Practice of corporate social responsibility and environmental protection in Thailand. ม.ป.ท.:Chulalongkorn University;Chayanin Wangsai และ Pisanu Sangiampongsa. The Practice of corporate social responsibility and environmental protection in Thailand. ม.ป.ท.:Chulalongkorn University, 2007. Print.