Rajagopalachari, C., author
IRCiSoD (Diva Press), 2012
Buku Teks
D.M. Wahyono
Balai pustaka, 1991
Buku Teks
Wawan Susetyo
Narasi, 2008
Buku Teks
Amin Sweeney, author
Universiti Kebangsaan Malaysia, 1972
Buku Teks
Avalon, Arhur
Dover Publications, 1974
Buku Teks