by Prof. Dr. Suharsimi Arikunto $6.00
by Irawan Soejito $6.00
by A.M. Basalamah $9.00
by Prof. Dr. Moh. Mahfud MD, S.H., S.U. $9.00
by Santoso, Loekito $6.00
by Dra. Zuhairini, dkk $9.00
by Prof. Abdulkadir Muhammad, S.H. $5.00
by Linder Maria C. $12.00