by Drs. H. Kahar Masyhur
$9.00

by Abu Aisy Abdul Mun\'im I
$12.00

by Ir. H. Rahmat Rukmana, MBA., M.Sc. & Uu Sugandi Saputra, B.Sc
$6.00

by Prof. Dr. dr. H. Dadang Hawari, Psikiater
$7.00

by Dr. Thomas Gordon
$6.00

by Prof. Dr. Sudarwan Danim
$9.00