4Dierkes, M,& Coppoek, R, 1978, "Europe tries the corporate social report" ,Business and Society Review,16,21-24.
5Freedman, M, & Jaggi, B, 1982, Pollution disclosures,pollution performance and economic performance. Omega, 10, 167-176.
6Ingram, R, & Frazier, K,1980, "Environmental performance and corporate disclosure",Journal of Accounting Research, 18,614-622.
7Trotman, K, & Bradley,G, 1981,"Associations between social respomsibility disclosure and characteristics.Accounting" ,Organizations and Society,6,355-362.