Blanchard, Wendell
Thailand
 Buku Teks
Archipel 90 : L'Est insulindien
Institut Francais D'Indonesie, 2015
 Buku Teks
American libraries turns 90
 Artikel Jurnal
Nyhoff, Larry
Fortran 90 for engineers and scientists
Prentice-Hall, 1997
 Buku Teks
Metcalf, Michael
Fortran 90 explained
Oxford University Press , 1990
 Buku Teks