Tan, Corrie (1 May 2013). "In good books". Singapore Press Holdings. The Straits Times. Archived from the original on 3 July 2015. Retrieved 28 January 2015.
Tan, Corrie (1 May 2013). "In good books". Singapore Press Holdings. The Straits Times. Archived from the original on 3 July 2015. Retrieved 28 January 2015.