by Dr. Pradana Soewondo, SpPD-KEMD $7.00
by Marihot P. Siahaan, S.E. $12.00
by Andrias Harefa $6.00
by Claude P. Wratal $13.00
by Surip Stanislaus, OFMCap. $4.00
by Prof. Hans (J) Berkel, MD. PhD $7.00
