by Parakkasi, Aminuddin $13.00
by $0.00
by Yernelis Sukma, M.S., & Yakup $7.00
by Anggorodi, R $6.00
by Ir. H. Rahmat Rukmana, MBA $5.00
by Prof. Dr. Ir. Tri Yuwanta S.U., DEA $7.00