Kevin Nobel kurniawan
Yayasan Pustaka Obor Indonesia, 2021
Buku Teks SO
Sudariyanto
Universitas Indonesia, 1987
UI - Skripsi Membership
Radita Senja Maharani
2017
UI - Tesis Membership
McCarthy, E. Doyle
Routledge, 1996
Buku Teks SO
Sanderson, Stephen K.
RajaGrafindo Persada, 2000
Buku Teks SO