by H. Musa, MBA $5.00
by K.H. Ali Yafie, Dr. M. Quraisy Shihab, dkk $6.00
by Moh. Wahyudi (pent.) $6.00
by Drs. Al. Amin Susanto $4.00
by Calvin S. Hall & Gradner Lindzey $12.00
by Prof. Drs. Sri Rumini $6.00