Peters, Gary L., author
Kendall/Hunt, 1983
Buku Teks
Iskandar, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2013
UI - Tesis Membership
Gopalakkrishnan, Panikkanparambil Kesavan
Institute of Social Studies, 1954
Buku Teks
Chandrasekhar, S., author
George Allen and Unwin, 1955
Buku Teks
Yudis Irfandi, author
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2020
UI - Tugas Akhir