Barnard, R.H.
Pearson-Prentice-Hall, 2004
Buku Teks SO
Tewari, Ashish
Springer Nature, 2019
eBooks
Kus VIrgantari
Universitas Indonesia, 2010
UI - Tesis Open
Bani Muhammad Alif
Universitas Indonesia, 2014
UI - Skripsi Membership
Christie, Agatha, 1890-1976
Gramedia Pustaka Utama, 2018
Buku Teks SO