Schwartz, Alvin
Harper Trophy, 1981
Buku Teks SO
Schwartz, Alvin
Harper Trophy, 1984
Buku Teks
Barrett, John
Allen & Unwin, 1995
Buku Teks SO
Liswood, Laura A.
Pandora, 1995
Buku Referensi
Whittaker, Joss R.
University of Indonesia, Faculty of Humanities, 2019
Artikel Jurnal