Gaya APA
Carter, P., Pakpahan, V. (2010).
Soft Competencies Self-test: ketahui dan tingkatkan soft competency anda (I).
Jakarta Pusat:
PPM.
Gaya MLA
Carter, Philip., Pakpahan, Verawaty.
"Soft Competencies Self-test: ketahui dan tingkatkan soft competency anda".
I
Jakarta Pusat:
PPM,
2010.
Text.