Staub, Ervin
Cambridge, 2003
Buku Teks
Staub, Ervin
university press, 2003
Buku Teks SO
Huber, Carlo
The Council for Research Values and Philosophy , 2001
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William Wardoyo
Fakultas Ilmu Pengetahuan Budaya Universitas Indonesia, 2016
UI - Skripsi Membership
Musavi Lari, Mujtaba
Foundation of Islamic Cultural Propagation in The World, 1993
Buku Teks SO