Heng, Siok Tian | Mixing Tongues, Singapore: Landmark Books, 2011, Print. November 11, 2013 Heng, Siok Tian | Mixing Tongues, Singapore: Landmark Books, 2011, Print. November 11, 2013 Heng, Siok Tian | Mixing Tongues, Singapore: Landmark Books, 2011, Print.