Supporting Decision Making for a Republic Under a Complex System -- Value Co-creation Platform as Part of an Integrative Group Model-Building Process in Policy Development in Indonesia -- The Effect of Sharing Information on Learning Process in Experimental Duopoly Game: A Case from Indonesia -- Value Co-creation on Cloud Computing: A Case Study of Bandung City, Indonesia -- Social Interaction in Travel Behaviour: Insights for Developing Effective Travel Demand Management for Indonesia -- Unfolding the Problem of Batik Waste Pollution in Jenes River, Surakarta, using Critical System Heuristics and Drama-Theoretic Dilemma Analysis.