Eddy, Mary Baker
First Church of Christ, Scientist, 1994
Buku Teks SO
Beasley, Norman
Buell, Sloan and Pearce, 1952
Buku Teks
Peel, Robert
Henry Holt, 1958
Buku Teks
International Reformed Evangelical Seminary and Westminster, 2016
Majalah, Jurnal, Buletin
Seo, Myengko
Routledge, Taylor & Francis Group, 2013
Buku Teks SO