Cahyani, R. , Hisjam, M. , Sutopo, W. , Widodo, K.. "A Supplier-Manufacturer Relationship Model for Teak Forest Carbon Sequestration and Teak Log Demand Fulfillment with Sustainability Consideration". World Academy of Science, Engineering and Technology, Open Science Index 72, International Journal of Industrial and Manufacturing Engineering (2012), 6(12), 2676 - 2681.