Nikarayanto
FMIPA UI, 1979
Buku Referensi
Yunus Syamsu Budhi
Balai Pustaka, [date of publication not identified]
Buku Teks SO
Manaf Hamzah
yayasan Obor Indonesia, 2009
Buku Teks SO
Syamsul Huda
1996
UI - Tesis Membership
Universitas Indonesia, 1994
UI - Skripsi Membership