Podmore, Valerie N.
Observation: origins and approaches in early childhood
McGraw-Hill, 2012
 Buku Teks
Studies on Srivijaya
Proyek Penelitian Purbakala Departemen P dan K, 1981
 Buku Teks
Ishida, Eiichiro
Japanese culture: a study of origins and characteristic
University of Tokyo Press, 1974
 Buku Teks SO
Rossiter, A.P. (Arthur Percival), 1957-
English drama from early times to the Elizabethans its background, origins and developments
Hutchinson's University Library, 1950
 Buku Teks SO
Explorations in early Southeast Asian history : the origins of Southeast Asian statecraft
edited by Kenneth R. Hall and John K. Whitmore
Center for South and Southeast Asian Studies, University of Michigan, 1976
 Buku Teks SO