by Daniel L. Smith $11.00
by Gino Moretto $8.00
by Prof. Dr. Sri Mulyani E. S $12.00
by Ir. Hieronymus Budi Santoso $5.00
by Dr. Zakiah Daradjat, dkk $11.00
by Salvatore M. Sabato, P., OFM Conv $8.00