by Prof. Dr. H. Nursid Sumaatmadja
$7.00

by Abdul Mani
$12.00

by Drs. Syaiful Bahri Djamarah
$7.00

by Drs. Mardalis
$6.00

by Prof. Dr. Suharsimi Arikunto
$7.00

by Dr. H. Abuddin Nata, MA
$7.00