Khofifah Khairyah, author
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 2022
UI - Tugas Akhir
Forrest, Joshua B., author
Westview Press, 1992
Buku Teks
Webster, J.B.
Praeger, 1967
Buku Teks
Lloyd, P.C
Frederick A. Praeger, 1968
Buku Teks
Hofman, Michael, author
Oxford University Press, 2017
eBooks