Jellinek, Lea, author
Allen and Unwin, 1991
Buku Teks
Moulaison, Heather Lea
Libraries Unlimited, 2015
Buku Teks
Harvard University Press, 1974
Buku Teks
Furnivall, JS
Solidaridad publishing house, 1974
Buku Teks
Syjuco, Jose G., author
Ne Day, 1977
Buku Teks