by Aziz Alimul $11.00
by Tarwoto $9.00
by Suhardi, dkk $11.00
by Prof. Dr. Arjatmo Tjokronegoro, Ph.D., SpAnd. $6.00
by Julius Chandra $7.00
by Fajar Arifin Gunawan & Elna Kartawiguna $10.00