Co-Authors Andreas Steven Hariboentoro Andrew Wong Aris Susanto Tjhin Debby Novita Sari Eunike Narulita Sitompul Insan Cipta Wirawan Ivan Kristianto Gunawan JOHANNES CHRISTANTO kevin julianto tejakusuma Kris Nathan Laurensia Monica Listia Natadjaja Raymond Ferdinand Apriatono Ronald Adiguna Halim Wibowo Tamsir Wibowo Wibowo