Wan Rasidah Kadir, O. Van Cleemput, and A. R. Zaharah. “SOIL NITROGEN DYNAMICS IN THE EARLY ESTABLISHMENT PHASE OF A FOREST PLANTATION IN PENINSULAR MALAYSIA”. Journal of Tropical Forest Science (JTFS), vol. 11, no. 1, Jan. 1999, pp. 100-1, https://jtfs.frim.gov.my/jtfs/article/view/1487.