by Y. Dedy Pradipto $11.00
by Lachman, L., Herbert A. Lieberman & Joseph L. Kanig $18.00
by Buckle, K.A., dkk $7.00
by Dr. Ibrahim Bafadal, M.Pd $6.00
by Asiyanto $6.00
by Suryohadiprojo, Sayidiman $6.00