by Ir. H. Rahmat Rukmana $6.00
by Ir. Hieronymus Budi Santoso $6.00
by James McManus, CSsR, STL. $3.00
by Ir. Dedy Heryadi Sutisna, MS & Ratno Sutarmanto $6.00
by Zara, Yuanda $5.00
by Suharso, A.S.P $9.00