Cohen, Edie Lee, author
Cahners, 1984
Buku Teks
Casamassima, Christy
PBC International, 1998
Buku Teks
Ronaboi Surya, author
2014
UI - Skripsi (Membership)
Santi Prameswari Ramadhani, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2016
UI - Skripsi (Membership)
Naomi S, author
Fakultas Ilmu Administrasi Universitas Indonesia, 2020
UI - Skripsi (Membership)