Tunguz, Tomasz, 1981-, author
Wiley, 2016
Buku Teks
Hankin, Harriet, author
[American Management Association, ], 2005
eBooks
Maxwell, John C., author
Thomas Nelson, 1991
Buku Teks
Parker, Marty, author
McGraw-Hill, 2012
Buku Teks
Ikeda, Daisaku, 1928-, author
Soka Gakkai , 1974
Buku Teks