by Drs. O.P. Simorangkir., dkk $11.00
by $9.00
by Dr. Soegeng Santoso, M.Pd dan Dra. Anne Lies Ranti., M.Pd $9.00
by Drs. Rohadi Abdul Fatah $7.00
by Drs. Amin Widjaja Tunggal, Ak., M.B.A $7.00
by $6.00
by Moch. Faisal Salam, SH., MH. $6.00
by Supranto, J. $7.00
by Ir. Heri Purnama $11.00
by John W. Amstrong $6.00