by Wildan Suyuthi $12.00
by Muh. Al Mighwar S.Ag., M.Ag. $7.00
by Ir. Rustam Hakim, M.T., IALI $9.00
by Dr. Thomas Gordon $6.00
by V. Lestari $6.00
by Jack Canfield & Mark Victor Hansen $12.00
by George D. Halsey $11.00