edited by Michael M. Cernea
Oxford Universiy Press, 1985
Buku Referensi
Artikel Jurnal
Loomis, Charles P.
Prentice Hall Inc., 1957
Buku Teks
Long, Norman, author
Tavistock Publication, 1980
Buku Teks
Muhammad Sulthoanuddin Akbar, author
Fakultas Teknik Universitas Indonesia, 2017
UI - Skripsi (Membership)