Tracy, Brian
Time power
Amacom, 2004
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Mancini, Marc
Time management
McGraw-Hill, 2003
 Buku Teks SO
On Space and Time
edited by Shahn Majid ; contributors, John Polkinghorne, Roger Penrose, Andrew Taylor, Alain Connes, and Michael Heller
Cambridge University Press, 2012
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Cultures and time
The UNESCO Press, 1976
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Bittel, Lester Robert
Right on time: the complete guide for time pressured managers
McGraw-Hill, 1991
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