by Wolfgang Bock, SJ. $3.00
by Dr. Al. Purwa Hadiwardoyo, MSF. $4.00
by $4.00
by $17.00
by Dr. Ir. Ahmad Khalid $11.00
by Asep Burhanuddin $7.00
by $16.00
by Prof. Dr. H.A.R. Tilaar, MSc.Ed $11.00
by S. Soegijanto $11.00
by Katzung $26.00