Peter C. Church (red.):A Short History of South East Asia.Sydney:ASEAN Focus Group,1999. ISBN978-0-646-38457-3. OCLC48212093. [dostęp 2021-11-19]. Cytat: Only in the major cities of Jakarta, Surabaya, Bandung and Medan are there significant numbers of people who speak Indonesian in the home and identify themselves as Indonesians from childhood.(ang.).
Peter C. Church (red.):A Short History of South East Asia.Sydney:ASEAN Focus Group,1999. ISBN978-0-646-38457-3. OCLC48212093. [dostęp 2021-11-19]. Cytat: Only in the major cities of Jakarta, Surabaya, Bandung and Medan are there significant numbers of people who speak Indonesian in the home and identify themselves as Indonesians from childhood.(ang.).