by Widyasari Kumala $8.00
by Prof. C.J. Ebrahim $6.00
by Nursalam $12.00
by Prof. Dr. Soekidjo Notoatmodjo $13.00
by dr. Mary Rauff, dkk $7.00
by Prof. Dr. Husaini Usman, M.Pd dan R. Purnomo Setiady Akbar, S.Pd., M.Pd $6.00