[publisher not identified], 2005
Buku Teks
Universitas Indonesia, 2011
UI - Skripsi (Open)
Wheare, K. C., author
Pustaka Eureka, 2005
Buku Teks
Findlay, Bruce Allyn, author
Stanford University Press, 1952
Buku Teks
Findlay, Bruce Allyn, author
Stanford University Press, 1959
Buku Teks