Avrutis, Raymond
Avery, 1994
Buku Teks
Hogue, Kathleen
Welker, 1988
Buku Teks
Burby, Raymond J.
Westview Press, 191
Buku Teks
Wolfbein, Seymur L.
Science Research Assicuates, 1964
Buku Teks
Resty Sopiyono, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2020
UI - Tesis (Membership)