by Brooks $18.00
by Dr. Muchtaruddin Mansyur $5.00
by Prof. DR. dr. S.M. Lumbantobing, SpS(K), SpKJ $5.00
by Brooks $20.00
by dr. Titus S. Pusponegoro, Prof. dr. Hans E. M. $5.00
by Sjadzali, H. Munawir $5.00
by Santoso, Loekito $6.00