1993-1995, PT CALTEX PACIFIC INDONESIA, JAKARTA, VARIOUS COURSES IN FINANCIAL&MANAGEMENT, OIL PRODUCTION, QUALITY AWARENESS, TEAM BUILDING<br>1994-1994, WALKER INTERACTIVE SYSTEMS, SAN FRANSISCO, USA, COMPUTER COURSES<br>2005-2005, PROF. MICHAEL E. POTTER OF HARVARD UNIVERSITY IN COOPERATION WITH UI&INDOSAT, MACROECONOMICS COMPETITIVENESS<br>2007-2007, BEST WORLD LIFESTYLE, SINGAPORE, MOTIVATIONS AND SELF BUILDING TRAININGS<br><br><br><br><br><br><br><br><br><br><br>