Published in Gardens' bulletin, Singapore, in 2009, in volume 61, issue 1, pages 29-44

Created: 2014-07-17, modified: 2014-07-17

Published in Telopea, in 2019, in volume 22, pages 193-204

Created: 2020-08-23, modified: 2020-08-23

Published in Gardens' Bulletin, Singapore, in 2013, in volume 65, issue 2, pages 135-142

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

Published in Gardens' Bulletin, Singapore, in 2010, in volume 62, issue 1, pages 17-22

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

Published in Gardens’ Bulletin Singapore, in 2015, in volume 67, issue 2, pages 297-303

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

Published in Gardens’ Bulletin Singapore, in 2016, in volume 68, issue 2, pages 279-285

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

Published in Gardens' Bulletin Singapore, in 2017, in volume 69, issue 1, pages 89-95

Created: 2018-09-17, modified: 2018-09-17