Singh, Gurmeet, author
Fakultas Kedokteran Universitas Indonesia, 2016
UI - Tesis (Membership)
Griffin, David H., author
John Wiley & Sons, 1981
Buku Teks
Artikel Jurnal
Budy P. Resosudarmo, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 1999
UI - Laporan Penelitian
Malhotra Publishing House, 1992
Buku Teks