by Lukman Syamsuddin $13.00
by H. Salim HS. S.H., M.S. $11.00
by Denise Lardner $9.00
by Michael Sherraden $13.00
by Prof. Dr. Suharsimi Arikunto $9.00
by Marihot P. Siahaan $13.00
by Drs. Al. Amin Susanto $3.00