by G. Siregar, Laksmi
$6.00

by Prof. Dr. Sondang P. Siagian, M.P.A
$7.00

by DR. H. Toto Suriaatmadja, SH., MH.
$5.00

by Abdul Halim Abu Syuqqah
$11.00

by Prof. J. Suprapto, M.A. APU
$11.00

by Putu Fajar Arcana
$7.00