by H. Ahmadi Isa $6.00
by Ir. Hatta Sunanta, B.Sc., MS $6.00
by Agus S. Gunadi $7.00
by Ir. Hieronymus Budi Santoso $6.00
by William Montgomery Watt $6.00
by Dra. V. Nuraini Widjajanti, Apt $6.00