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”, JTFS, vol. 4, no. 2, pp. 179–181, Dec. 1991.