Gaya APA
Duckworth, A. (2023).
GRIT : The Power of Passion and Peseverance (cet. 14).
Jakarta:
PT. Gramedia Pustaka Utama.
Gaya MLA
Duckworth, Angela.
"GRIT : The Power of Passion and Peseverance".
cet. 14
Jakarta:
PT. Gramedia Pustaka Utama,
2023.
Buku.