- Presenter at lokakarya “E-government: Potensi, Kendala, Strategi Implementasi”. Hotel Matahari, Yogyakarta, 12 September 2003.
- Moderator at panel (seminar) “Peluang dan Tantangan E-government di Era Otonomi Daerah”. Fakultas Ekonomi UGM, Yogyakarta, 18 September 2003
- Presenter at panel (Lokakarya Nasional) “Strategi dan Tahapan Implementasi E-Government untuk Pemerintah Daerah”. Hotel Sheraton, Yogyakarta 10 Oktober 2003.
- Present “Information Systems Research Topics” at Research Workshop in Faculty of Economic, Muhammadiyah University of Surakarta, 24 July 2004
- Present “Structural Equation Modeling” at Sanata Dharma University (collaborate with Indonesian Accountant Association), 13 August 2004.
- Present “Auditing and E-Commerce” at IS Auditing Workshop that is held by Accounting Research and Development, Faculty of Economics Universitas Gadjah Mada in Plaza Hotel Yogyakarta, 26-28 August 2004.
- Present “Pengembangan Kurikulum Akuntansi Berbasis Kompetensi Symposium” at Syllabi Symposium in IAIN Raden Intan, Bandar Lampung, 29 September - 1 October 2005.
- Present “Job Opportunities in Information Systems” at Stadium General, Universitas Muhammadiyah Yogyakarta, 22 February 2007.
- Present “Capex vs. Opex in IT: Accounting and Corporate Finance Point of View” at CIO Forum, Pertamina Building Jakarta, 17 July 2007.
- Present “ICT Implementation in Government Institutions: Aligning ICT to the Bureaucracy or Aligning Bureaucracy to the ICT?” at Best Practices of E-Government Implementation Seminar (held by MTI UGM), Yogyakarta, 4 April 2008
- Present “Impact of ICT Convergence from the Economic Perspective” at Seminar of C-Generation in Institut Teknologi Bandung (ITB), Bandung, 2-3 December 2008.
- Present “Procurement Audit of Public Fund (Dana Masyarakat), Direktorat PPA UGM, 30 April 2009
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