by Alex Seran [and others]
Universitas Katolik Indonesia Atma Jaya, [date of publication not identified]
Buku Teks
Herckenrath, C. R. C., author
J. B. Wolters, 1937
Buku Referensi
Herckenrath, C. R. C., author
J. B. Wolters, 1936
Buku Referensi
Proost, K.F. Dr.
van Loghum Slaterus, 1958
Buku Teks
Slive, Seymour
Mercatorfonds, 1990
Buku Teks