by Budi Rachmat $11.00
by H. Rahmat Rukmana $5.00
by Dr. Kees Bertens $11.00
by $6.00
by Dr. Sofyan Syafri Harahap, M.S,Ac $12.00
by Najwa Husein Abdul Aziz $7.00
by $9.00
by WK $12.00
by Prof. dr. D. Bachtiar Lubis, dr. Sylvia D. Elvira $7.00
