Gaya APA
Lefton, R, E., Haryono, A.
(2005).
Creating an Effective Task Management System
(
Ed.1 ; Cet.I)
.
s.l.:
.
Gaya MLA
Lefton, Robert, E.., Haryono, Andreas.
"Creating an Effective Task Management System".
Ed.1 ; Cet.I
s.l.:
,
2005.
Text.