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

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

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

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

36 kesalahan terbesar para penjual dan cara membetulkannya = The 36 biggest mistakes salesmen make and how to correct them / George N. Kahn; penerjemah, Yulia Sri Haryani