by Prof. Dr. H. Muhaimin, M.A $11.00
by Sofyan Syafri Harahap $7.00
by E. Martasudjita, Pr. $3.00
by Dr. K.H. Didin Hafidhuddin, M.Sc $7.00
by Jamal $7.00
by Joos van Vugt $7.00