Video of “Pekarangan” lecture by Hadi Susilo Arifin  in National University of Singapore was uploaded by ETH Zurich’s student, David Kretz. This lecture was held in CREATE Tower, Campus Town, National University of Singapore on March 21th, 2013.  The participants of “pekarangan” lecture were 22 students of ETH Zurich, 9 students of NUS, 9 students of UI, 6 students of IPB, some assistants and professors. This class was a part of seminar and workshop of Designing the Ciliwung River, 15 – 23 March 2013.