Gaya APA
Mandino, O.
(2017).
The Greatest Salesman In The World
.
Surabaya:
PT. Menuju Insan Cemerlang.
Gaya MLA
Mandino, OG.
"The Greatest Salesman In The World".
Surabaya:
PT. Menuju Insan Cemerlang,
2017.
Text.