Groeneveldt, W. P. (Willem Pieter), 1841-1915
Bhratara, 1960
Buku Klasik
Wolff, Robert Lee
Harvard University Press, 1956
Buku Teks SO
O`Leary, De Lacy
K. Paul, Trench, Trubner & Co., 1927
Buku Teks SO
edited by S.W.R. Mulyadi
Foris Publications, 1983
Buku Teks SO
Ras, Johannes Jacobus
Fakultas Ilmu Pengetahuan Budaya Universitas Indonesia, 1968
UI - Disertasi Membership