by Suhema, S.Pd $7.00
by Drs. Djoko Tri Prasetya, dkk $7.00
by Prof. Dr. Husaini Usman, M.Pd & R. Purnomo Setiady Akbar, S.Pd., M.Pd $11.00
by Frans M. Royan $7.00
by $18.00
by Drs. G. Kartasapoetra $9.00