Demonstrative pronouns are ‘ini’(this) and ‘itu’(that):
Ini besar. – This is big.
Itu rumah saya. – That is my house.
‘Ini’ and ‘itu’ can also give emphasis to first person pronouns:
Kau kira saya ini pelayanmu? – Do you think I am your servant?
Mereka itu tetangga saya. – They(who have been mentioned) are my neighbors.
Indonesian Reference Grammar by James Neil Sneddon, 1996.