I'm currently working my conceptual framework on regeneration dynamics of dipterocarps species. I'm having difficulties on finding related studies that could help improve my study.
Yes Appanah & Turnbull published by CIFOR is a good start. There is also the 'Proceedings Fifth Roundtable Conference on Dipterocarps' held at Chiang Mai in 1994 and published by FRIM 1996; this was edited by Appanah and Khoo. FRIM would be your best bet for up to date knowledge on dipterocarp ecology and silvics.