Masuri S.N.
Oxford University Press, 1962
Buku Teks
National Library Board, 2008
Buku Referensi
Fiska Chandra Agrisita, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2015
UI - Skripsi (Membership)
Slamet Sukirmanto, author
Balai Pustaka, 1982
Buku Teks
Jusra Chandra, author
Gramedia Pustaka Utama, 2009
Buku Teks