by Kasmir, S.E., M.M $11.00
by Marihot P. Siahaan $16.00
by Sumitro Djojohadikusumah $31.00
by Cristina S. Handayani $9.00
by DR. Soekidjo Notoatmodjo $7.00
by A.H. Manurung, S.E $7.00
by Aziz Alimul $9.00
by - $13.00