by Prof. Dr. Sondang P. Siagian, M.P.A $7.00
by Drs. Amin Widjaja Tunggal, Ak., M.B.A $7.00
by - $9.00
by Soenjono Dardjowidjojo $7.00
by Oman Faturahman $7.00
by Istimawan Dipohusodo $18.00
by Prof. Abdulkadir Muhammad, S.H. $5.00
by Sudjiman, H. Panuti $6.00
by Aidil Al Qarni $7.00
by Johannes Muller $13.00
by K.H.D. Zawawi Imron $5.00
by M. Sumardjono $9.00