Tigor Nauli Surawidjaja
Gramedia, 1983
Buku Teks SO
Susanto
Dinastindo, 1990
Buku Teks SO
Albrecht, Robert L.
John Wiley, 1978
Buku Teks SO
Worth, Thomas
Prentice-Hall, 1976
Buku Teks SO
National Committee for the Tenth Conference of Heads of State or Government of Non-Aligned Countries
Gramedia Pustaka Utama, 1992
Buku Teks SO