by ISEI $12.00
by M. Gani Kristianto $12.00
by Ag. Sri Oktri Hastuti $5.00
by J. Donald Walters $5.00
by Bambang Agus Murtidjo $6.00
by Ir. Hieronymus Budi Santoso $5.00
by Dr. Endang Turmudi $9.00
by Muljana, B.S $9.00
by Michael Crichton $11.00
by Ir. Abbas Siregar Djarijah $5.00
by Tania Murai Li $11.00
by Aca Sugandhy $10.00