Dawe, Bruce
Longman Cheshire, 1986
Buku Teks
Tsao, Yu
Foreign Language Press, 1960
Buku Teks
I Putu Gede Ary Suta, 1958-
Yayasan Sad Satria Bhakti, 2004
Buku Teks
Jusup Karuniamulia
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 1993
UI - Tesis (Membership)