on 2006 - 07-17 . ^ Kingsbury, Damien. Autonomy and Disintegration in Indonesia . Routledge, 131. ISBN 0-415-29737-0 . ^ Small but significant populations of ethnic Chinese , Indians, Europeans and Arabs are concentrated mostly in urban areas . ^ Ricklefs (1991), page 256 ^ Domestic migration (including the official Transmigrasi program)