Pandikattu, Kuruvilla
Council for Research in Values and Philosophy, 2001
Buku Teks SO
Deussen, Paul, 1845-1919
Grafton Press, 1927
Buku Teks SO
Muriwali Yanto Matalu
Sekolah Tinggi Teologi Reformed Injili Internasional (STTRII), 2017
Artikel Jurnal
Hafizh Zaskuri
Universitas Indonesia, 2009
UI - Skripsi Open
Hayes, Nicky
Macmillan, 1995
Buku Teks SO