Larassatti Dharma Nanda, author
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 2021
UI - Tugas Akhir
Hughes, William F., author
John Wiley & Sons, 1979
Buku Teks
Umar Junus, author
Universiti Malaya, 1974
Buku Teks
R.N. Bray, editor
Taylor and Francis, 2008
Buku Teks
Baldwin, Ernest, author
Cambridge University Press, 1959
Buku Teks