Lamur, H.E., author
Nijhoff, 1973
Buku Teks
Van Boeckel, Joseph J.G.M., author
Helder, [Date of publication not identified]
Buku Teks
Pasapardi Suparlan, author
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 1976
UI - Tesis Membership
Jaquet, F.G P. (Frederic George Peter)
Petaling Jaya, 1976
Buku Klasik
Artikel Jurnal