Bruce, Martha
Rights and duties of directors
Bloomsbury Proffesional, 2012
 Buku Teks
Nicolson, Miklos S.
Duties and liabilities of corporate officers and directors
Prentice-Hall, 1972
 Buku Teks
Beach, David P.
Handbook for scientific and technical research
Prentice-Hall, 1992
 Buku Referensi
Handbook of research on teacher education
John Sikula, senior editor ; Thomas Buttery, editor, Edith Guyton, editor
Macmillan Library Reference USA, 1996
 Buku Referensi
Handbook of research on teaching
edited by Merlin C. Wittrock; a project of the American Educational Research Association
Macmillan Library Reference USA, 1986
 Buku Referensi