Flo. Academic Press , 1980
Buku Teks
Coombs, Philip H., author
Rajawali, 1985
Buku Teks
Coombs, Philip H., author
Rajawali, 1984
Buku Teks
Mega Silviliyana, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2022
UI - Tesis (Membership)
John Wiley & Sons, 1997
Buku Teks