Kratz, Ernst Ulrich, author
Gadjah Mada University Press, 1988
Buku Referensi
Haura Shafa Dewantari, author
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 2018
UI - Makalah dan Kertas Kerja
Dayal, Har
Motilal Banarsidass , 1932
Buku Teks
compiled by Ruth Z. Temple; edited by Martin Tucker
Frederick Ungar Publishing, 1981
Buku Referensi
Hunt, Peter, 1945-, author
Oxford University Press, 1994
Buku Teks