by DR. Ir. Hj. Tati Nurmala, S.W $6.00
by Drh. Nabari Tarigan, MSc $6.00
by Bernard T. Adeney $12.00
by K.H. Mustofa Bisri $6.00
by Fauziah Muhlisah $6.00
by Archie J. Bahm $7.00