Nyanaponika, Thera
Wisdom Publications, 2003
Buku Teks SO
Ladner, Max
Rascher Verlag, 1948
Buku Teks
Tia Saraswati
Fakultas Ilmu Pengetahuan Budaya Universitas Indonesia, 2003
UI - Skripsi Membership
Bukkyo Dendo Kyokai
Kosaido, 1979
Buku Teks SO
Ministry of Information and Broadcasting, [date of publication not identified]
Buku Teks SO