by Dra. Haula Rosdiana, M.Si $12.00
by Drs. D. Ketut Sukardi $11.00
by Prof. Dr. Soekartawi $6.00
by Sofyan Syafri Harahap $7.00
by H. Dahlan Thaib, dkk $7.00
by Prof. dr. Arjatmo Tjokronegoro, Ph.D $5.00
by $9.00