Podolinsky, Michael A, author
Productivity: winning in life
McGraw-Hill, 2011
 Buku Teks
Humes. James C.
Talk your way to the top/ James C. Humes
McGraw-Hill , 1980
 Buku Teks
Johnson, Joseph French
Business and the man /Joseph Frenchc Johnson
Alexander Hamilton Institute, 1962
 Buku Teks
Richards, Dick
Assessing your team : 7 measures of team success team member's manual /Dick Richards and Susan Smyth
Jossey-Bass , 1994
 Buku Teks
Casson, Herbert N
Rahasia sukses manajer dalam satu menit
Cahaya Srikandi, 1997
 Buku Teks
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