by John W. Osbome $7.00
by K. Usman $6.00
by Irma Setyowati Soemitro, S.H $6.00
by Dr. Dimyati dan Drs, Mudjiono $9.00
by Prof. Dr. Suharsimi Arikunto, dkk $7.00
by G. Kartasapoetra dan R. G. Kartasapoetra, S.H $6.00