Gorman, Michael
Technical services today and tomorrow
Libraries Unlimited, 1990
 Buku Teks
Vance, Charles C.
Manager today, executive tomorrow
McGraw-Hill, 1974
 Buku Teks
Nasution, Abdul Haris, 1918-2000
Pancasila Democracy today and tomorrow
Seruling Masa, 1971
 Buku Teks
Ahuja, B. N.
Communications yesterday, today and tomorrow
Surjeet Publications, 1989
 Buku Teks
Severino, Rodolfo C., Jr.
Asean today and tomorrow
ASEAN Secretariat, 2002
 Buku Teks