by Linda Schubert $5.00
by Thomas L. Madden, MA $12.00
by Darminta, J, SJ $4.00
by $4.00
by Fachruddin H.S dan Irfan Fachruddin, S.H $13.00
by Prof. Dr. M. Mutawalli asy-Sya'rawi $6.00
by Prof. Dr. Suharsimi Arikunto $18.00
by - $6.00