Ehrman, Lee
McGraw-Hill, 1981
Buku Teks
edited by John L. Gittleman
Comstock , 1989
Buku Teks
Munn, Norman L.
Houghton-Mifflin, 1955
Buku Teks
Ahmed Ben Mohamed
2016
Artikel Jurnal
Ahmed Ben Mohamed
Faculty of Engineering, Universitas Indonesia, 2016
Artikel Jurnal