by Prof. H.M. Arifin, M.Ed
$9.00

by Dr. Ibrahim Bafadal, M.Pd
$6.00

by Dra. Zuhairini, dkk
$9.00

by Prof. Dr. Suharsimi Arikunto
$6.00

by Dr. H. Abuddin Nata, MA
$7.00

by Y.B. Mangunwijaya
$11.00