English in Southeast Asia and ASEANAzirah Hashim, Gerhard Leitner · First published 2020Open the Tome
Ethnic Englishes, Indigenous and Migrant LanguagesGerhard Leitner · First published 2013Open the Tome
Reference grammars and modern linguistic theoryGottfried Graustein, Gerhard Leitner · First published 1989Open the Tome
Australia's many voices Vol 2: Ethnic Englishes, indigenous and migrant languages: policy and educationGerhard LeitnerOpen the Tome