Otto, Walter F.
The Homeric Gods : the spiritual significance of Greek religion / Otto Walter
Pantheon, 1954
 Buku Teks
Hughes, R. Kent
The sermon and the greek new testament / R. Kent Hughes
Westminster Theological Seminary Philadelphia, Pennsylvania, USA ; International Reformed Evangelical Seminary Jakarta, Indonesia, 2016
 Artikel Jurnal
Beam, Walter R.
Systems engineering: architecture and design/Walter R. Beam
McGraw-Hill , 1990
 Buku Teks
Borg, Walter R.
Educational research: an introduction / Walter R. Borg
David Mc Kay Co., 1963
 Buku Teks
Dietrich, Joseph R.
Solid fuel reactors / Joseph R. Dietrich and Walter H. Zinn
Addison-Wesley, 1958
 Buku Teks