Mutiara kepribadian / Thowil Akhyar Dasoeki

 Dasoeki, Thowil Akhyar; Said, Thohuri Muhammad;

Jakarta : Gunung Jati , 1983

Membangkitkan kekuatan terpendam / Philip Denning

 Denning, Philip;

Jakarta : Gramedia , 1990

Laboratory atlas of anatomy and physiology

 Eder, Douglas J.; Kaminsky, Lewis Shari; Bertram, John W; Waters, John;

Boston : : McGraw-Hill Higher Education , 2004

Bagaimana menghadapi orang sulit

 Keating, Charles j;

Yogyakarta : Kanisius , 1990

Personality : classic theories and modern research

 Friedman, Howard S.; Schustack, Miriam W.,;

Boston : Pearson Allyn & Bacon, , 2012