by Sotar Baduara & Drs. S. Martin Sirait
$6.00

by Drs. Ary H. Gunawan
$7.00

by A. B. Setiaji
$9.00

by Drs. Amin Widjaja Tunggal, Ak., M.B.A
$7.00

by Drs. Djalinus Syah, Dra. Azimar Enong, dan H.N. Murdiati Sulastomo
$7.00

by Ir. Mul Muyani Sutedjo
$12.00