Photo Galleries
- Tianjin and Beijing, China Nov 26-30, 2005
- 7th International Conference on Mercury as a Global Pollutant, Ljublana, Slovenia, June 27-July 2, 2004
- Photo galleries of 14th Philippine Chemistry Congress, Iloilo city, the Philippines, May 2004
- Photo Galleries of the International Symposium of Modern Organocopper Chemistry, Dortmund, Germany, Oct 9-11, 2002
- The Philippines (Aug-Sep, 2002)
- Los Angeles, CA, USA(Aug, 2001)
- Canada (August, 2000)
- Brazil (April, 1999)
- Atlanta, GA, USA