by - $18.00
by Leden Marpaung, S. H. $7.00
by Prof. Dr. Suharsimi Arikunto $6.00
by Drs. Suharto, dkk $7.00
by Halimuddin, S.H $7.00
by Prof. Drs. C.S.T. Kansil, S.H. $0.00