Gaya APA
PURNAMA, F, C., Hakim, A, R. (2012).
Perancangan Polygonal Screen Machine di CV Opattan Mekanika (1st).
Bandung:
Polman.
Gaya MLA
PURNAMA, Fachrizal, Cahya., Hakim, Adies, Rahman.
"Perancangan Polygonal Screen Machine di CV Opattan Mekanika".
1st
Bandung:
Polman,
2012.
Printed.