Gorman, G.E., author
Grenwood Press, 1986
Buku Referensi
Ahmad Fadlan Awriya, author
Fakultas Teknik Universitas Indonesia, 2019
UI - Tugas Akhir
Rahner, Karl, author
The Crossroad Publishing Company, 1981
Buku Referensi
Doyglas J. Davies, author
Berg, 2002
Buku Teks SO
Lessing, Gotthold Ephraim, 1729-1781, author
Cambridge University Press, 2005
Buku Teks