by Prianto & Fritz $30.00
by Abuddin Nata $7.00
by Prof. Dr. H.A.R. Tilaar, MSc.Ed $9.00
by Glenda Crosling, Graeme Atherton, Siti Norbaya Azizan $59.99
by Arrohman Prayitno, Trubus Rahardiansah dan Chris Siner Key Timu $10.00
by Drs. Djoko Widagdho, dkk $9.00
by $16.00
by Parwadi Moengin $9.00