by John L. Espostio $11.00
by Suwendi, M.Ag $7.00
by Prof. Dr. Utami Munandar $11.00
by Drs. Syaiful Bahri Djamarah $7.00
by Drs. H. Burhanuddin Salam, M.M $7.00
by Guritno, Pandam $5.00