by Gadjahnata, K.H.O & Sri-Edi Swasono $7.00
by Miles Matthew B. dan A. Michael Huberman $9.00
by Hasbullah $11.00
by J. Robert Starratt $7.00
by Prof. Dr. Suharsimi Arikunto, dkk $7.00
by Suryokusumo, Sumaryo $6.00