editor, Robert E. Egner; penerjemah, Rani Rahmanillah
Sadasiva, 2003
Buku Teks
Herminie Soemitro
Universitas Indonesia, 1989
UI - Skripsi (Membership)
Riyati Yarmani
Universitas Indonesia, 1987
UI - Skripsi (Membership)
Russell, Bertrand, 1872-1970
Avon Book Divition, 1930
Buku Teks
Dorward, Alan
Britsh Council, 1951
Buku Teks