Assessing time, career, and life directions: workplace issues

Golf and the game of leadership: an 18-hole guide for success in business and in life

Live Life in Crescendo: Karya paling penting selalu di depan kita

Who moved my cheese? : an amazing way to deal with change in your work and in your life = Cara jitu menghadapi liku-liku perubahan dalam kehidupan dan pekerjaan / Spencer Johnson ; Antonius Eko, translator

Idea agent: leadership that liberates creativity and accelerates innovation