by Darmono $7.00
by Michael P. Todaro $16.00
by Nursalam $7.00
by A. Sungguh (Penyunting) $7.00
by Dr. Zakiah Daradjat, dkk $7.00
by Dr. Muchtaruddin Mansyur $5.00
by Al. Wahjasudibja, Pr. $12.00
by DR. Sunita Almatsier, M.Sc $13.00
by Metropop $9.00