Agustinus Hendikus Albert
Katholieke Economixche Hapetchool, 1948
Buku Teks
Paatz, Walter
Antwerpen Spectrum 1953
Buku Teks
Kan, Joseph van, 1877-1944, author
A.C. Nix, 1935
Buku Klasik
Hugenholtz, F. W. N., author
H.D. Tjeenk Willing & Zoon N.V, 1950
Buku Klasik
Kazemier, G., author
Amsterdam JM Meulenhoff 1947
Buku Teks