by Prof. Dr. dr. I.G.N. Wila Wirya, Prof. dr. Husein Alatas
$5.00

by Drs. Ajat Sudrajat
$7.00

by Mark Smith
$7.00

by Herbert G. Hick dan G. Ray Gullet
$20.00

by Prof. Drs. H. Lili M. Sadeli, M.Pd
$9.00

by Katzung
$26.00