Auwjong, Peng Koen
Kompas, 2002
Buku Teks
Ind, Allison
David McKay, 1958
Buku Teks SO
Auwjong, Peng Koen
Kompas, 2006
Buku Teks SO
edited by Brigadier Peter Young
Hamlyn, 1981
Buku Referensi
compiled and edited by Gotthold Rhode and Wolfgang Wagner
Brentano-Verlag, 1959
Buku Teks SO