Coleman, James T., author
Reston Publishing, 1982
Buku Teks
Universitas Indonesia, 2003
UI - Skripsi (Membership)
Universitas Indonesia, 2003
UI - Skripsi (Membership)
Gourishankar, Vembu
International Textbook Company, 1965
Buku Teks
Nadya Amanda Pritami, author
2014
UI - Skripsi (Membership)