101 biggest mistakes managers make and how to avoid them / Mary Albright, Clay Carr.

More proactive sales management: avoid the mistakes even great sales managers make--and get extraordinary results

New sales speak: the 9 biggest sales presentation mistakes and how to avoid them

44 kesalahan manajemen dan cara menghindarinya = the 44 most common management mistakes and how to avoid them/John Courtis .

35 kesalahan entrepreneur dan bagaimana memperbaikinya = The entrepreneurs mistakes and how to avoid them / Felix W. Lombardi; alih bahasa, Trisno Rahayu Wilujeng