Erwindo Rinaldo, examiner
Handbook of Broadcasting
McGraw-Hill, 1957
 Buku Teks
Compton, Charles
Inside chemistry
McGarw-Hill, 1979
 Buku Teks
Downs, Anthony
Inside Bureaucracy
Little, Brown and Co., 1967
 Buku Teks
Gunther, John, 1901-1970
Inside Asia
Harper & Brothers, 1942
 Buku Teks
Gunther, John, 1901-1970
Inside Africa
Hamish Hamilon, 1955
 Buku Teks