by Drs. Syaiful Bahri Djamarah $7.00
by Dr. C. Asri Budiningsih $7.00
by Andrias Harefa $7.00
by Drs. Ary H. Gunawan $11.00
by Edgar Morin $6.00
by Miles Matthew B. dan A. Michael Huberman $9.00
by Cik Hasan Bisri $9.00
by $6.00