Weitzman, David, author
Charles Seribner's Sond, 1994
Buku Referensi
Law, Stephen, author
Quersus, 2013
Buku Teks
Nyanaponika, Thera, author
Wisdom Publications, 2003
Buku Teks
Biaug, Mark
Cambridge University Press, 1986
Buku Teks
Getis, Arthur, author
Macmillan, 1985
Buku Teks