Piskurich, George M.
Self-directed learning: a practical guide to design, development, and implementation
Jossey-Bass, 1994
 Buku Teks
Casner, A. James
Estate planning
Little, Brown, 1982
 Buku Teks
Casner, A. James
Estate planning / A. james Casner
Little, Brown and Company, 1979
 Buku Teks
Kahn, Alfred J.
Theory and practice of social planning : companion volume to studies in social policy and planning
Russel Sage Foundation, 1969
 Buku Teks
Ginzberg, Eli, 1911-
Human resources the wealth of nation
Simon and Schuster, 1958
 Buku Teks