by Iwan Yusi, S.Pd $7.00
by Prof. Dr. Prijono Tjiptoherjanto $6.00
by Prof. Dr. Suharsimi Arikunto $13.00
by Dr. G. Kartasapoetra dan H. Marsetyo $7.00
by Drs. R. Suharno $6.00
by Ir. Suharto $9.00
by Ir. Heinz Frick $6.00
by Nursalam $9.00