by dr. Titus S. Pusponegoro, Prof. dr. Hans E. M. $5.00
by Prof. dr. H. Nurbaiti Iskandar, Sp.THT $5.00
by S. Wibowo $13.00
by Prof. Dr. dr. Adhi Djuanda, Sp.KK(K) $16.00
by Brooks $20.00
by $6.00
by Dr. Khalid Abu Syadi $5.00