7Carrington PJ. 1981. Horizibtak Co- optation through coroporate interlocks. PhD thesis. Dept Social Univ. Toronto.
8Chin -Huat Ong, David Wan, Kee -Sing Ong. 2003. An exploratory study on interlocking directorates in listed firms in Singapore. Corporate Governance. 11 (4) : 322 -334.
9Fligstein N, Brantley P. 1992. Bank control , owner control , or organizational dynamics : Who controls the large modern corporation? Am J Social. 98 : 280- 307.
10Rafael Liza Santos, Alexandre Di Miceli da Silveira. 2007. Board interlocking in Brazil: Directors' participation in multiple companies and its effect on firm value. Novermber. working paper.