Gaya APA
Spinner, M, P. (1992).
Elements of project management : plan, schedule, and control (2nd.ed.).
Englewood Cliffs, New Jersey:
Prentice Hall.
Gaya MLA
Spinner, M., Pete.
"Elements of project management : plan, schedule, and control".
2nd.ed.
Englewood Cliffs, New Jersey:
Prentice Hall,
1992.
Text.