Nguyen, T. V., N. C. Nguyen, and O. J. H. Bosch. “DEVELOPING CAUSAL LOOP DIAGRAMS FOR COFFEE SUPPLY CHAIN: SUPPORTING TO ENHANCE THE COMPETITIVE ADVANTAGES OF A VIETNAMESE COFFEE”. Proceedings of the 59th Annual Meeting of the ISSS - 2015 Berlin, Germany, vol. 1, no. 1, Jan. 2016, https://journals.isss.org/index.php/proceedings59th/article/view/2542.