edited by Michael J.M. Martin
Wiley-Interscience , 1971
Buku Teks
Juanda Napitupulu ... [et.al.]
Bagian penerbitan Institut Nasional Malang, 1998
Buku Teks
Sri Mulyono, author
Lembaga Penerbit Fakultas Ekonomi Universitas Indonesia, 1999
Buku Teks
Hillier, Frederick S., author
Stanford University, 1973
Buku Teks
Osborn, John F., author
Blackwell, 1979
Buku Teks