Graaf, Hermanus Johannes de, 1899-1984, author
Tiara Wacana Yogya , 1997
Buku Teks SO
Atmasedjati, author
1985
UI - Skripsi Membership
Nagelkerke, Gerard A.
Leiden Library of the Royal Institute of Linguistics and Anthropology 1982
Buku Referensi
Helmi Arief, author
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 1994
UI - Skripsi Membership
translated edited by M. C. Ricklefs
Centre of Asian Studies, Monash University, 1984
Buku Teks SO