Peale, Norman Vincent, 1898-1993, author
Binarupa Aksara, 1993
Buku Teks
Astrid Savitri, author
Caesar Media Utama, 2019
Buku Teks
Covey, Stephen R., author
Gramedia, 2005
Buku Teks
Harrold, Fiona, author
Gramedia, 2005
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Sasaki, Fumio, author
Gramedia Pustaka Utama, 2019
Buku Teks