Language Installation of Sri lanka language Sinhalese, Sinhala

Dear Gurus,

We have requirement to perform Language installation for below three languages.

1) Bahasa , Indonesia

2) Sinhalese, Sri Lanka

3) Vietnamese, Viet Nam

I am able to find separate Language CD for "Vietnamese" but i am unable to find CDs for Bahasa or Sinhalese.

Does any one have any CD number or have performed language installation for these earlier can throw some light on same?

Warm Regards,

Shravan