- 11
November 2013.
Retrieved 14
October 2019.
Simon Gardner,
Pindar Sidisunthorn and Lai Ee May 2011.
Heritage Trees of Penang. Penang:
Areca Books....
- efloras.org.
Retrieved 29 June 2007.[title missing]
Simon Gardner,
Pindar Sidisunthorn and Lai Ee May, 2011.
Heritage Trees of Penang. Penang:
Areca Books....
- 179 – via
University of
Michigan Digital Collections. Gardner, Simon;
Sidisunthorn, Pindar; Ee, Lai (2011).
Heritage Trees of Penang.
George Town, Penang...
- (3): 201–217. doi:10.11646/phytotaxa.261.3.1.
Simon Gardner,
Pindar Sidisunthorn and Lai Ee May, 2011.
Heritage Trees of Penang. Penang:
Areca Books....
- Putrajaya: 174–175.
February 2024. ISBN 9789672537069.
Simon Gardner,
Pindar Sidisunthorn and Lai Ee May, 2011.
Heritage Trees of Penang. Penang:
Areca Books....
-
Gesellschaft für
Technische Zusammenarbeit. pp. 138–9. Gardner, Simon,
Pindar Sidisunthorn, and
Vilaiwan ****arnsunthorn. A
Field Guide to
Forest Trees of Northern...
-
Malaysian Nature Society. ISBN 967-99906-0-5.
Simon Gardner,
Pindar Sidisunthorn and Lai Ee May, 2011.
Heritage Trees of Penang. Penang:
Areca Books....
-
Deepest Caves: A
Caving Guide. pp. 10–12. ISBN 978-1-326-43857-9.
Pindar Sidisunthorn;
Simon Gardner; Dean
Smart (2006).
Caves of
Northern Thailand. Bangkok:...
- (Routledge, 2012), ISBN 1 84407 301 7 p. 200.
Simon Gardner,
Pindar Sidisunthorn and Lai Ee May, 2011.
Heritage Trees of Penang. Penang:
Areca Books....
-
Archived 2009-04-14 at the
Wayback Machine (in Thai) Gardner, Simon,
Pindar Sidisunthorn, and
Vilaiwan ****arnsunthorn. A
Field Guide to
Forest Trees of Northern...
