edited by Dor Sachetti
La Leche League International, 1998
Buku Teks
edited by Marc H. Bornstein
Lawrence Erlbaum associates, Publishers, 2002
Buku Teks
Queensland University of Technology, 1998
Buku Referensi
American Society of Civil Engineers. Task Committee on Hydrology Handbook.
ASCE, 1996
Buku Referensi
Stiles, Karl A., author
McGraw-Hill, 1968
Buku Referensi