Otto, Henry J.
Aplenton-Century-Crofts, 1964
Buku Teks
edited by Sydney Nettleton Fisher
Cornell University Press , 1955
Buku Teks
edited by Hussein Hassan Soliman
Routledge, 2013
Buku Teks
Billstein, Rick, author
Pearson Addison Wesley, 2007
Buku Teks
Zahra Salsabila Mahasin, author
Fakultas Psikologi Universitas Indonesia, 2022
UI - Skripsi (Membership)