Dalrymple, G. Brent, author
Stanford Univ.Press, 2001
Buku Teks
Artikel Jurnal
Prothero, Donald R.
McGraw-Hill Higher Education, 2004
Buku Referensi
Carey, Samuel Warren, author
Elsevier, 1976
Buku Teks
Chang, Eileen, author
Berkeley Publishing, 1962
Buku Teks