Geology and palaeontology of the Redang islands, Trengganu, Peninsular Malaysia - 1988
Monotis fauna of China and its palaeobiogeographic significance - 1989
Uppermost Permian ammonoids from northern Thailand - 1990
Early Permian brachiopods from Perak, west Malaysia - 1991
The dinosaurs of Thailand - 1993
Late Middle Permian Radiolaria from the Jengka area, central Pahang, Malaysia - 1995
Late Triassic Radiolaria from the Kodiang Limestone, northwest Peninsular Malaysia - 1995
New Middle Devonian (Eifelian) rugose corals from Myanmar - 1995
New Middle Devonian (Eifelian) rugose corals from Myanmar - 1995