Y. Maruyama, T. Toma, A. Ishida, Y. Matsumoto, Y. Morikawa, L.H.Ang, S.K.Yap, and M. Iwasa. “PHOTOSYNTHESIS AND WATER USE EFFICIENCY OF 19 TROPICAL TREE SPECIES”. Journal of Tropical Forest Science (JTFS), vol. 9, no. 3, Mar. 1997, pp. 434-8, https://jtfs.frim.gov.my/jtfs/article/view/1696.