Gaya APA
PURNAMA, S. et al
(2010).
Pembuatan Filter For Blow Film Machine
(
1st)
.
Bandung:
Polman.
Gaya MLA
PURNAMA, Sandra. et al.
"Pembuatan Filter For Blow Film Machine".
1st
Bandung:
Polman,
2010.
Printed.