Sistem Kontrol, kerjasama fakultas teknik Universitas Tanujaya,
Pontianak
2-10 Agustus 1993
Control System in Our Daily Life, Presentation schedule family Business Association,
Kuta Bali,
20-21 Nov 2006
Polytechnic and its Role for Developing Human Resources,
Batam ,
28 Oktober 1998
Kunjungan Team Energy LIPI,
Jepang,
17 Maret 1982- 9 April 1982
Kegiatan Perekonomian Usaha Kecil Menengah (UKM) untuk meningkatkan mutu SDM Indonesia, Seminar Nasional- Fakultas Ekonomi UNJANI,
Bandung,
2006
1st Symposium on Develop of Rural Information in China,
Wuyishan, China,
18-20 Agustus 2007
Penelitian Kendali Optimal Linear Berubah Waktu (Linear Time Varying Optimal Control)
Bandung,
Januari 1991
Membangun Masyarakat Spiritual, Sains, Rekayasa, Teknologi dan Seni (SPISARETEKS) Indonesia via Pendidikan daln Pelatihan (Diklat)dan Penelitian dan Pengembangan (Litbang) Masdali
A preliminary Study of Automatic Lighting Control Systems
Brunei Darrussalam
Januari 13-15 1988
Seventh General Assembly of World Federation of Engerneering Organization
16 Nopember 2009
The Role of Continue Ststem based on Art, Spiritual, Science. Engineering and Technology (ASSET) for Improving the Qualification of the individual New/ Renewable Energy (IQINRE)
25 Mei 2010
