by Drs. Hadiyanto, M.Ed $9.00
by Drs. Joko Tri Prasetyo, dkk $9.00
by Warisno $7.00
by Drs. Amin Widjaja Tunggal, Ak., M.B.A $6.00
by Dellmann, H. Dieter $7.00
by Roland Bunch $6.00
by Aditama, Tjandra Yoga $5.00
by - $7.00
by Clara Ng $6.00
by Drs. H. Oka A. Yoeti, MBA $7.00
by - $11.00
by Darto Singo $10.00