by Prof. Dr. M. Mutawalli asy-Sya'rawi $6.00
by Prof. DR. A.P. Parlindungan, SH. $8.00
by M. Yahya Harahap, S.H. $5.00
by - $12.00
by Zairin Harahap $9.00
by Prof. J. Supranto, M.A., APU $11.00