by $4.00
by Ir. Budi Samadi $6.00
by $7.00
by Loyniwati Kho $6.00
by Ir. Hatta Sunanta, B.Sc., MS $5.00
by Aji Supriyanto $16.00
by $16.00
by Prof. Dr. Sondang P. Siagian, M.P.A $7.00
by Aziz Alimul $9.00
by Lipschutz $13.00
by Khalid Syayid Ali $6.00
by Robert L. Wolke $11.00