by Drs. H. Malayu S.P. Hasibuan
$11.00

by Dr. Hj. Albertine Minderop, MA
$6.00

by Hardius Usman
$6.00

by Prof. Dr. H. Ismail Muhammad Syah, S.H. dkk
$11.00

by Eva Waty Agung
$12.00

by Kansil C.S.T
$7.00