by Abdullah Nashih Ulwan $5.00
by ISEI $11.00
by Ir. Eddy Afrianto & Ir. Evi Liviawaty $6.00
by Dr. K.H. Didin Hafidhuddin, M.Sc $7.00
by Ir. Lisdiana Fachruddin $5.00
by Bruder Roger dari Taize $0.00