Contemporary British theatre
edited by Theodore Shank
Macmillan, 1994
 Buku Teks SO
The World encyclopedia of contemporary theatre : Europe
edited by Don Rubin, Peter Nagy and Philippe Rouyer
Routledge, 2001
 Buku Referensi
Who's who in contemporary world theatre
edited by Daniel Meyer-Dingrafe
Routledge, 2000
 Buku Referensi
The World encyclopedia of contemporary theatre : Asia Facific
edited by Don Rubin, Chua Soo Pong, Minoru Tanokura and Katherine Brisbane
Routledge, 2001
 Buku Referensi
Who's who in the theatre : a biographical record of the contemporary stage
edited by John Parker
Pitman, 1952
 Buku Referensi