by K. Usman $6.00
by Dra. Hj. Etin Solihatin, M.Pd, Rahardjo, S.Pd $7.00
by Lyle W. Morgan II, Ph.D., HMD $7.00
by Murad Lesmana, Jeanette $7.00
by Drs. Ibnu Syamsi, S.U $6.00
by Tobi Moektijono $5.00