Gaya APA
HASIBUAN, H, P. et al (1997).
Preventive Maintenance Two Plate Horizontal Moulding Injection di PT Techplas Batam (1st).
Bandung:
Polman.
Gaya MLA
HASIBUAN, Holman, P.. et al.
"Preventive Maintenance Two Plate Horizontal Moulding Injection di PT Techplas Batam".
1st
Bandung:
Polman,
1997.
Printed.