by dr. Clifford Rose & dr. Paul Davies $6.00
by Drs. Rahardjo $6.00
by Drs. Burhanuddin Salam $9.00
by Imelda Akmal $6.00
by Dra. Hj. Etin Solihatin, M.Pd, Rahardjo, S.Pd $7.00
by Dr. Zakiah Daradjat, dkk $9.00
by Michael J. Tang $13.00