APA Style
Sumut Regional conference 2005: Commit to quality and never ending improvement is our key success. (2006).
(4) Organisasi Perusahaan: Teo:
.
MLA Style
Sumut Regional conference 2005: Commit to quality and never ending improvement is our key success.
thn.2005.
(4) Organisasi Perusahaan: Teo:
,
2006.
Text.