Abd. Razak Othman. “A NOTE ON INTERCROPPING OF COFFEE WITH <em>ARAUCARIA</em> <em>HUNSTEINII</em> AND <em>PINUS</em> <em>MERKUSII</Em> TREES IN PENINSULAR MALAYSIA”. Journal of Tropical Forest Science (JTFS), vol. 4, no. 2, Dec. 1991, pp. 179-81, https://jtfs.frim.gov.my/jtfs/article/view/1996.