by Ernest Mariyanto $6.00
by Ir. H. Muhammad Syakir Sula, AAIJ, FIIS $31.00
by Alfred McBride, O. Praem $9.00
by Amatullah Shafiyyah $6.00
by I.R. Adi & Ade Anita $6.00
by Ir. Heinz Frick & Pujo L. Setiawan $7.00