Heng Wong & Naidu Ratnala Thulaja. "Ang Mo Kio Public Library". National Library Board Singapore. Archived from the original on 10 February 2009. Retrieved 2009-02-15.
Heng Wong & Naidu Ratnala Thulaja. "Ang Mo Kio Public Library". National Library Board Singapore. Archived from the original on 10 February 2009. Retrieved 2009-02-15.