Gaya APA
Ponda, Sofyan. (1992).
Sofyan Ponda: Kisah Pendiri Hotel-Hotel Kecil (Cet. 1).
Jakarta:
Danamal Corporation.
Gaya Chicago
Ponda, Sofyan.
Sofyan Ponda: Kisah Pendiri Hotel-Hotel Kecil.
Cet. 1
Jakarta:
Danamal Corporation,
1992.
Text.
Gaya MLA
Ponda, Sofyan.
Sofyan Ponda: Kisah Pendiri Hotel-Hotel Kecil.
Cet. 1
Jakarta:
Danamal Corporation,
1992.
Text.
Gaya Turabian
Ponda, Sofyan.
Sofyan Ponda: Kisah Pendiri Hotel-Hotel Kecil.
Cet. 1
Jakarta:
Danamal Corporation,
1992.
Print.