Niblett, G.B.F., author
OECD, 1971
Buku Teks
Ari Ezra Waldman, author
Cambridge University Press, 2018
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Rendra Sukana, author
Fakultas Psikologi Universitas Indonesia, 2021
UI - Skripsi (Membership)
Freeman, Lee, author
Information Science Publishing, 2005
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Jarvis, Craig, author
CRC press, 2021
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