edited by Robert Burchfield
Cambridge University Press, 1994
Buku Referensi
Shastri, Mahamahopadhyaya Haraprasad
Asiatic Society of Bengal, 1928
Buku Referensi
Eny Setyowati, author
Fakultas Kesehatan Masyarakat Universitas Indonesia, 2001
UI - Tesis Membership
Ahmad Amin, author
Maktabat al-Nahdat al-Misriyyah, 1956
Buku Teks
Moore, Alan, author
Gramedia Pustaka Utama, 2006
Buku Teks