McGregor, Donald E. (1982). Olo language materials. McGregor, Aileen R. F. Canberra, A.C.T., Australia: Dept. of Linguistics, Research School of Pacific Studies, Australian National University. ISBN0858832623. OCLC10825288.
Staley, William (1995). Referent management in Olo: a cognitive perspective. OCLC896393831.
McGregor, Donald E. (1982). Olo language materials. McGregor, Aileen R. F. Canberra, A.C.T., Australia: Dept. of Linguistics, Research School of Pacific Studies, Australian National University. ISBN0858832623. OCLC10825288.