In Reply to: Spot on. Our staff have always addressed posted by Rangatira on Sunday, 15. March 2009 at 09:13 Bali Time:
Years ago, the Indonesian Government issues an instruction to its staff that the staff had to address each other as Ibu or Pak.
Ibu is a respectful salutation. Possibly, some Balinese have translated Ibu into Mum.