by Suharyo, I., Pr, Mgr. $4.00
by Drs. Yustinus Semiun, OFM $20.00
by Ashadi Siregar & I Made Suarjana $6.00
by $4.00
by Ir. Heinz Frick $6.00
by Calvin S. Hall & Gradner Lindzey $11.00