Penggayaan APA
Joyowiyono. (1983).
Ekonomi teknik ( engineering economics), Jl.1 .
Jakarta:
DPU.
Chicago Style
Joyowiyono.
Ekonomi teknik ( engineering economics), Jl.1.
Jakarta:
DPU,
1983.
Text.
MLA Style
Joyowiyono.
Ekonomi teknik ( engineering economics), Jl.1.
Jakarta:
DPU,
1983.
Text.
Turabian Style
Joyowiyono.
Ekonomi teknik ( engineering economics), Jl.1.
Jakarta:
DPU,
1983.
Print.