Gaya APA
Sumarsono, D. (2019).
Winning competition : new business model for hotel industry (cet ke-1).
Jakarta:
Gramedia Pustaka Utama.
Gaya MLA
Sumarsono, Dicky.
"Winning competition : new business model for hotel industry".
cet ke-1
Jakarta:
Gramedia Pustaka Utama,
2019.
Text.