Resepfinder as an iOS-Based Local Cooking Recommendation - William; Hanry Ham (Enabling Collaboration to Escalate Impact of Research Results for Society: The 4th International Conference on Computer Science and Computational Intelligence, ICCSCI 2019, 12-13 September 2019, Yogyakarta, Indonesia, 2019)

Development of Affordable and Powerful Swarm Mobile Robot Based on Smartphone Android and IOIO board - Alexander Agung Santoso Gunawan; William; Boby Hartanto; Aditya Mili; Widodo Budiharto; Afan Galih Salman; Natalia Chandra (ICCSCI, 2017)

Information Visualization for Tourist and Travelling in Indonesia - Adityo Ashari Wirjono; Z. S. Ricky Lincoln; William; Dewi Agushinta R. (Advances in Computing and Communications - First International Conference, ACC 2011, Kochi, India, July 22-24, 2011. Proceedings, 2011)

Workshop 2: DDI 101: Codebook Creation for Beginners - William (IASSIST 2004 - Data Futures: Building on 30 Years of Advocacy, Madison, Wisconsin, USA, May 25-28, 2004, 2004)