Gaya APA
Duckworth, A. (2016).
Grit: the power of passion and perseverance (Mei 2016).
New York:
Simon & Schuster Audio.
Gaya MLA
Duckworth, Angela.
"Grit: the power of passion and perseverance".
Mei 2016
New York:
Simon & Schuster Audio,
2016.
Text.