Graaf, Hermanus Johannes de, 1899-1984, author
Pustaka Utama Grafiti, 1989
Buku Teks
[publisher not identified], [date of publication not identified]
Naskah
Raap, Olivier Johannes, 1966-, author
Kepustakaan Populer Gramedia, 2017
Buku Teks
Kementrian Penerangan , [date of publication not identified]
Buku Referensi
P.M. Laksono, author
Gadjah Mada University Press , 1990
Buku Teks