4 1 40 Mike Britton Additional Author Suzanne Van Cleve Additional Author Hanny Agustine Additional Author Sandy Halim Additional Author mixed material 9789792709810 Jakarta Elex Media Komputindo 2007 Rizaldi firdaus Additional Author Mike Britton Additional Author Suzanne Van Cleve Additional Author Hanny Agustine Additional Author mixed material 979201019x Jakarta Elex Media Komputindo 1999 Mike Britton Additional Author Suzanne van clave Additional Author Ucak Additional Author Diar Puji Oktavian Additional Author mixed material 9798773292 Penerbit MediaKom 2013 Karlina Additional Author Mike Britton Additional Author Suzanne van clave Additional Author mixed material 076450837 Jakarta 1999 memahami_berkonferensi.jpg.jpg