Universitas Indonesia, 2006
UI - Skripsi (Membership)
Praeger , 1977
Buku Teks
edited by Lewis M. Alexander
University of Rhode Island, 1968
Buku Teks
edited by Lewis M. Alexander
University of Rhode Island, 1969
Buku Teks
edited by Lewis M. Alexander
University of Rhode Island, 1971
Buku Teks