Gaya APA
RIDHA, A. et al (2009).
Proses Pembuatan Trolley Cor PT. Wika Beton Di PT. Sinar Sakti Jaya (1st).
Bandung:
Polman.
Gaya MLA
RIDHA, Afdal. et al.
"Proses Pembuatan Trolley Cor PT. Wika Beton Di PT. Sinar Sakti Jaya".
1st
Bandung:
Polman,
2009.
Printed.