Annisa Heningtyas, author
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 2015
UI - Makalah dan Kertas Kerja
Diesing, Paul
Urbana, Ill. University of Illinois Press 1962,
Buku Teks
Emmerson, Paul, author
Cambridge University Press, 2005
Buku Teks
Atterbury, Paul
Hurtwood Press, 1985
Buku Teks
edited by Brian L. Keeley
Cambridge University Press, 2006
Buku Teks