APA Style
Smile, Heri. (2011).
Incredible and Impression service: 156 kebiasaan efektif orang sales dan customer service .
Yogyakarta:
Shira Media.
Chicago Style
Smile, Heri.
Incredible and Impression service: 156 kebiasaan efektif orang sales dan customer service.
Yogyakarta:
Shira Media,
2011.
Buku Teks.
MLA Style
Smile, Heri.
Incredible and Impression service: 156 kebiasaan efektif orang sales dan customer service.
Yogyakarta:
Shira Media,
2011.
Buku Teks.
Turabian Style
Smile, Heri.
Incredible and Impression service: 156 kebiasaan efektif orang sales dan customer service.
Yogyakarta:
Shira Media,
2011.
Buku Teks.