1. Bontis, Keow., dan Richardson. (2000). Intellectual Capital and Bussines Perfomance in Malaysian Industries. Journal of Intellectual Capital, 1(1), 85-100. https://doi.org/10.1108/14691930010324188
2. Burhan, A.H.N., dan Rahmati, N. (2012) The Impact of Sustainability reporting on Company Performance, Journal of Economics, Busiess, and Accountincy Ventura, Agustus 2012, 15(2), 257 - 272. https://pdfs.semanticscholar.org/711a/6e1788e94667dbf489a219eb80172a83140f.pdf
3. Deegan, Craig. (2004). Financial Accounting Theory. Sydney. Sydney: McGraw-Hill Book Company.
4. George, R., dan Kabir, R. (2005). Corporate diversification and performance: Does the Organizational Form of the Firm Matter? FMA Annual Meeting, Chicago, pp. 1-81.
5. Hameed, S., Wirman, A., Alrazi, B., Nazli, D.M., dan Pramono, S. (2004), Alternative Disclosure dan Performance for Islamic Bank’s. Proceeding of the Second Conference on Administrative Science: Meeting the Challenges of the Globalization Age: Dahran, Saudi Arabia. https://faculty.kfupm.edu.sa/coe/sadiq/proceedings/SCAC2004/50.ASC089.EN.Shahul.Alternative%20Disclosure%20&%20Performance%20_1_.pdf