Claxton, john, author
Glorier International, 1999
Buku Referensi
Hunt, Nigel, author
Glorier International, 2001
Buku Referensi
Dolman, Carol, author
Glorier International, 2001
Buku Referensi
Humphries, john, author
Glorier International, 1999
Buku Referensi
Yanuar Yoga Prasetyawan, author
2013
UI - Tesis (Membership)