Gaya APA
R., H., B. (1980).
Production technology (cet. xxvi).
Malang:
Pustaka Setia.
Gaya Chicago
R., H., B..
Production technology.
cet. xxvi
Malang:
Pustaka Setia,
1980.
Text.
Gaya MLA
R., H., B..
Production technology.
cet. xxvi
Malang:
Pustaka Setia,
1980.
Text.
Gaya Turabian
R., H., B..
Production technology.
cet. xxvi
Malang:
Pustaka Setia,
1980.
Print.