Ecklein, Joan Levin, author
John Wiley & Sons, 1972
Buku Teks
Gilbert, Neil, author
Prentice-Hall, 1977
Buku Teks
Muhammad Agung Persada Bangun, author
2017
UI - Skripsi (Membership)
Schaller, Lyle E., author
Nashville-Abingdon Press , 1966
Buku Teks
edited by Fred M. Cox [and others]
FE Peacock, 1979
Buku Teks