by Ig. Cahyo Irwanto, Pr. $4.00
by AAK $6.00
by H. Rahmat Rukmana $6.00
by Bambang Agus Murtidjo $6.00
by Drs. Djoko Widagdho, dkk $9.00
by Dr. Ibrahim Bafadal, M.Pd $6.00
by $9.00
by Katzung $30.00
by WK $12.00
by Christine Nostlinger $6.00
by - $7.00
by Mohd. Nasir $8.00