1. Indonesia profile BBC http://www. bbc.com/news/world-asia-pacific-14921238
2. E. Pisani Foreign Affairs http://www.foreignaffairs.com/articles/141481/ elizabeth-pisani/indonesia-in-pieces
3. Indonesia Ministry of Tourism http://www.indonesia.travel/en/discover-indonesia#tab1
4. Indonesia Central Statistics Agency 2010 http://demografi.bps.go.id/phpfiletree/ bahan/kumpulan_tugas_mobilitas_pak_chotib/Kelompok_1/Referensi/BPS_kewarganeg araan_sukubangsa_agama_bahasa_2010.pdf
5. Bahasa, batik, and bargaining: An exploratory study of the negotiation styles and behaviors of Indonesian managers;Gray;Journal of Transnational Management,2010