by P. A. Elliot $9.00
by Dr. Lijan Poltak Sinambel, M.M., M.Pd., dkk $9.00
by James Barros $11.00
by Helmut Morsbach, dkk $7.00
by Dr. Zakiah Daradjat, dkk $11.00
by Dr. Ibrahim Madkour $11.00