| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| A Guide to the Orchids of Singapore | 978-9971-88-359-1 (9971-88-359-7) | 1995 | Hew Choy Sin |
| The Natural Heritage of Singapore | 978-981-06-8437-2 (981-06-8437-1) | 2009 | L.M. Chou · Darren C.J. Yeo · Peter K.L. Ng |
| The Natural Heritage of Singapore | 978-981-06-7792-3 (981-06-7792-8) | 2007 | L.M.Chou · Darren C.J.Yeo · Peter K.L.Ng |
H.T. · H. T. W. Tan · H. Tan · H.W. · Hugh W. · T.T. · T. Tan · T W · T W Tan · W. T.