4 1 50 Irwansyah Primary Author mixed material 9786023182367 Jakarta Mitra Wacana media 2017 Peran Komunikasi Interpersonal Dalam Aktivitas Bisnis Suharsono Primary Author Dwiantara, Lukas Primary Author mixed material 9786029324358 Yogyakarta CAPS 2013 Proses dan Produk (Business Communication : Process dan Product) Rhodes, Kathleen Additional Author Guffe, Mary Ellen Primary Author Rogin, Patricia Additional Author mixed material 9796912929 Jakarta Salemba Empat 2006 Purwanto, Djoko Primary Author mixed material 9796885026 Jakarta Erlangga 2003