by Muhammad Teguh $7.00
by Prof. Subowo, dr. M.Sc., Ph.D $9.00
by Drs. Hendiyat Soetopo $11.00
by Guritno, Pandam $5.00
by Drs. H. Abu Ahmadi dan Taswa E.S $11.00
by J. Robert Starratt $7.00
by Imelda Akmal $6.00