Gaya APA
Widada, .
(2013).
3 in 1 rancang bangun google sketchup autocad
.
Yokyakarta:
Mapinfo.
Gaya MLA
Widada, .
"3 in 1 rancang bangun google sketchup autocad".
Yokyakarta:
Mapinfo,
2013.
Text Book.