by Sanapiah Faisal $9.00
by Andrias Harefa $7.00
by Prof. Dr. S. Nasution, M.A. $7.00
by Dr. Zakiah Daradjat, dkk $7.00
by - $16.00
by Toelihere, Mozes R & Yuhara Sukra $5.00
by Dr. C. Asri Budiningsih $6.00
by Y. Dedy Pradipto $11.00
by Rahmat Ruhyana $8.00