Published in Gardens' Bulletin, Singapore, in 1980, in volume 33, issue 1, pages 1-30

Created: 2016-02-28, modified: 2016-02-28

Published in Gardens' Bulletin, Singapore, in 1980, in volume 33, issue 1, pages 31-150

Created: 2016-02-28, modified: 2016-02-28

Published in Gardens' Bulletin, Singapore, in 1980, in volume 33, issue 1, pages 151-263

Created: 2016-02-28, modified: 2019-03-18

Published in Gardens' Bulletin, Singapore, in 1980, in volume 33, issue 2, pages 264-289

Created: 2016-02-28, modified: 2016-02-28

Published in Gardens' Bulletin, Singapore, in 1980, in volume 33, issue 2, pages 290-296

Created: 2016-02-28, modified: 2016-02-28

Published in Gardens' Bulletin, Singapore, in 1980, in volume 33, issue 2, pages 297-301

Created: 2016-02-28, modified: 2016-02-28

Published in Gardens' Bulletin Singapore, in 1980, in volume 33, issue 2, pages 302

Created: 2018-12-17, modified: 2018-12-17

Published in Gardens' Bulletin, Singapore, in 1980, in volume 33, issue 2, pages 303-311

Created: 2016-02-28, modified: 2016-02-28

Published in Gardens' Bulletin, Singapore, in 1980, in volume 33, issue 2, pages 312-327

Created: 2016-02-28, modified: 2016-02-28

Published in Gardens' Bulletin Singapore, in 1980, in volume 33, issue 2, pages 329-367

Created: 2018-12-17, modified: 2018-12-17