by dr. Ahmad Syauqi Al Fanjari $9.00
by Ag. Sri Oktri Hastuti $5.00
by Tanenbaum $13.00
by Dra. M. Sri Sulastri Rifai, M.Pd $6.00
by Dr. Tony Setiabudi, Ph.D., Dr. Hardywinoto, SKM $9.00
by WK $11.00
by Arleen Amijaya $6.00