Tooley, Peter
Fats, oils and waxes / Peter Tooley
John Murray, 1971
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Travel behaviour research the leading edge
David Hensher
Pergamon Press, 2001
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SEG Annual report : The leading edge
Tahunan
Majalah, Jurnal, Buletin
Kotter, John P., 1947-
Leading change
Harvard Business School, 1996
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Perkins, Dennis N.T., 1953-
Leading at the edge : leadership Lessons from the extraordinary saga of Shackleton's Antarctic expedition
Amacom, 2012
Buku Teks