Gaya kepemimpinan yang efektif bagi para manajer /oleh Agus Dharma Survival 2001 : scenario from the future / Henry E. Voegeli, John J. Tarrant Madeleine / Celia Robert ; illustrated by Carol Tarrant Dasar teori listrik-magnet / John R. Reitz, Frederick J. Milford, Robert W. Christy ; penerjemah, Suwarno Wiryosimin ; penyunting, Sasanti W. Purbo Hadiwidjojo Effective psychology for managers / Mortimer R. Feinberg Training for leadership / John AdairFoundations of electromagnetic theory / John R. Reitz, Frederick J. Milford, Robert W. ChristyHandbook of counseling psychology / edited by Steven D. Brown, Robert W. LentEgo defebses theory and measurement / edited by Hope R. Conte, Robert PlutchikReading strategies and practices a compedium / Robert J. Tierney, John E. Readence, Ernest K. Dishner