Gaya APA

T.Loeb, R, E, D, J. (2005). Effektive Task Management System . Jakarta: PT.Bhuana Ilmu Populer.

Gaya MLA

T.Loeb, Robert, E.Lefton, Dan, Jerome. "Effektive Task Management System". Jakarta: PT.Bhuana Ilmu Populer, 2005. Text.