Irfan Kurniawan, author
Fakultas Teknik Universitas Indonesia, 2012
UI - Skripsi (Open)
Munasinghe, Mohan
World Bank , 1981
Buku Teks
Flavin, Christopher, author
Worldwatch Institute , 1986
Buku Teks
Boylestad, Robert L., author
Prentice-Hall, 1983
Buku Teks
Adams, James E.
McGraw-Hill, 1985
Buku Teks