ஒத்த வளங்கள்: Journey to the summit of Gunong Bubu /
- A journey to the source of the Indau /
- A journey in the Menangkabau States of the Malay Peninsula /
- Report on the geology and physical geography of the State of Perak /
- Sandpipers and mudskippers : a journey through the Ramsar Mangroves of Iskandar Malaysia /
- Place-names in the Sitiakawan area, Perak /
- Kuala Lumpur in 1884? /