1 1 10 Acep Syaripudin Primary Author Deni Ahmad Additional Author Dewi Widya Ningrum Additional Author Indriyatno Banyumurti Additional Author Merry Magdalena Additional Author mixed material 9786025132421 Jakarta ICT Watch - Indonesia 2017 2110d53e083fc4842d7eceff6a527830f5281ee939958baff49bbd47fda5eb4c.jpg