Published in Gardens' Bulletin, Singapore, in 2012, in volume 64, issue 2, pages 333-370

Created: 2015-07-28, modified: 2015-07-28

Published in Gardens' Bulletin, Singapore, in 2013, in volume 65, issue 2, pages 181-184

Created: 2017-05-21, modified: 2017-05-21

Published in Gardens' Bulletin, Singapore, in 2009, in volume 61, issue 1, pages 159-184

Created: 2015-07-29, modified: 2015-07-29

Published in Gardens’ Bulletin Singapore, in 2015, in volume 67, issue 1, pages 101-106

Created: 2017-04-12, modified: 2017-04-12