The World Bank Group, 2000
Buku Referensi
World Bank
World Bank, 1998
Buku Teks
Parents' Magazine's Cultural Institute, 1965
Buku Referensi
Symposium Technical Paper ASHRAE, June 22-25, 1986, Portland, Oregon
American Society of Heating, Refrigerating and Air Conditioning Engineers, 1986
Buku Teks
edited by Brenda White
Taylor Graham, 1978
Buku Teks