International Organizational for Standardization
International Organizational for Standardization, 1999
Buku Teks
Mahkamah Konstitusi RI, 2006
Buku Teks
LIPI - Press, 2007
Buku Referensi
Singarimbun, Masri, author
Ghalia Indonesia, 1986
Buku Teks
Campbell, William Giles, author
Houghton Mifflin, 1967
Buku Teks