“INTELLIGENT DECISION SUPPORT SYSTEMS FOR SEARCHING THE OPTIMUM PALM OIL BASED BIO-ENERGY SUPPLY CHAIN BY USING ANT COLONY OPTIMIZATION METHOD”, JTIP, vol. 21, no. 1, Nov. 2011, Accessed: Mar. 22, 2026. [Online]. Available: https://journal.ipb.ac.id/jurnaltin/article/view/3668