Brown, Lester R., author
W.W. Norton, 1981
Buku Teks
Carr, Edward Hallet, author
Beacon Pers, 1951
Buku Teks
Lester R. Brown ...[et al.]
W.W. Norton, 1990
Buku Teks
[Fakultas Teknik UI, Hoshin. Data Hoshin. Studio Hoshin (Manchester)], 2011
Artikel Jurnal
Haggerty, Patrick E., author
Columbia University Press, 1974
Buku Teks