Mckinlay, Brian, author
Collins , 1985
Buku Teks
Stirn, Aglaja
Prestel, 2002
Buku Teks
Ness, Patrick, 1971-, author
PT. Gramedia Pustaka Utama, 2018
Buku Teks
Tiurmauly, Virna, author
Fakultas Psikologi Universitas Indonesia, 2007
UI - Skripsi (Membership)
Sinnott-Armstrong, Walter, author
Oxford University Press, 2016
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