Kamm, Jacob O.
World Publishing Comp., 1952
Buku Teks
Inggrid, author
2016
UI - Tugas Akhir
Muhammad Ikhsan Burhanuddin, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2020
UI - Tesis Membership
Maan, Everett J., author
Macmillan, 1956
Buku Teks
Sauvain, Harry C., author
Prentice-Hall, 1953
Buku Teks