by Prof. Dr. Veithzal Rivai $13.00
by Hiro Tugiman $6.00
by Idi Setiyobroto, dkk $6.00
by Anisitus Amanat $7.00
by Gunawan Widjaja, A. Yani $7.00
by Rosady Ruslan $12.00
by $5.00