by Kusno Budi Santoso dan S. Ary Soewendo $11.00
by Prof. Dr. Soekidjo Notoatmodjo $9.00
by A. Tresna Sastrawijaya, M.Sc $7.00
by DR. Soekidjo Notoatmodjo $7.00
by Dra. Khusnul Khotimah $6.00
by Ir. Sarjoni Basri $9.00