1. S. kumar, A. Salam, C. Marpaung, K. Kusakabe, R. Perera and C. Visvanathan. “Action towards resource efficient and low carbon cities: Experience sharing workshop “, 11 – 12 February 2013, Asia Airport Hotel, Bangkok.
2. S. kumar, Action reearch on low carbon cities in Asia, 2013 Eco city World Summit conference, 25-27 September 2013, Nantes, France.