by Fairhurst, Michael C $6.00
by Anwar, Moh. Arsjad, dkk $9.00
by Wirakusumah, Sambas $7.00
by Ir. Moehar Daniel, M.S $7.00
by Prof. Dr. Suharsimi Arikunto $13.00
by DR. Maria S.W. Sumardjono, SH $6.00
by $12.00
by Drs. Ton Kertapati $7.00
by Muhammad Al-Ghazali $6.00
by Anthony F. Chiffolo $4.00
by Jakob Oetama $13.00
by Drs. Hg. Suseno Triyanto Widodo $6.00