compiled and edited by Samuel E. Krug
Metritech, 1993
Buku Referensi
Adams, Francis V.
McGraw-Hill, 2007
Buku Teks SO
edited by Lisa Wolford & Richard Schechner
Routledge, 1997
Buku Teks SO
Ira Indah Permata Sari
Fakultas Ilmu Pengetahuan Budaya Universitas Indonesia, 2012
UI - Skripsi Open
Daniel Christianto
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2021
UI - Tesis Membership