Direktur Human Capital Management Telkomsel Irfan A Tachrir, Managing Director Gramedia Digital Nusantara Kelvin Wijaya, Senior Vice President Corporate Secretary Telkomsel Muharam Perbawamukti dan Chief Operating Officer Gramedia Digital Nusantara Adi Ekatama seusai pandatanganan kerjasama di Jakarta, (20/8/2018).(Dok. Telkomsel)